851 open-source vendors.

• DustEU sovereign

  French AI platform for building internal AI assistants with LLM integration

  France

• Haystack (deepset)EU sovereign

  Berlin-based deepset GmbH's open-source (Apache-2.0) LLM orchestration framework for RAG and agent pipelines; actively maintained (v2.30.2, June 2026) with 232+ releases.

  Germany

• Hugging FaceNon-EU vendor

  Hugging Face is a US-based AI company (New York City) offering an open-source platform and Hub for sharing machine learning models, datasets, and demos. Founded 2016 by French entrepreneurs; US-headquartered with a secondary office in Paris.

  United States

• Jina AIEU-hosted, non-EU parent

  Jina AI is a Berlin-based AI company specialising in frontier models for multimodal and multilingual search, including open-source embedding and reranker models. Since October 2025 it is a wholly owned subsidiary of Elastic N.V. (NYSE: ESTC), a US company headquartered in Mountain View, California. Elastic has committed to continuing open-source model releases on Hugging Face.

  Germany · owner in United States

• Kern AIEU sovereign

  German platform for data-centric AI and training data management

  Germany

• LangfuseEU-hosted, non-EU parent

  Langfuse is an open-source LLM observability platform (MIT license) originally founded in Germany, acquired by ClickHouse Inc. (USA) in January 2026. The ultimate parent is US-based.

  Germany · owner in United States

View all open-source AI vendors

• AiderSelf-hosted / open source

  Open-source terminal AI pair-programming tool (Apache 2.0) by creator Paul Gauthier; no controlling company, bring-your-own-model.

  United States

• ClineSelf-hosted / open source

  Open-source VS Code AI coding agent (Apache 2.0, ~70k GitHub stars) by Cline Bot Inc. (San Francisco) with step-by-step Plan/Act interaction.

  United States

• GooseSelf-hosted / open source

  Open-source AI developer agent (Apache 2.0) originally by Block Inc., donated to the Linux Foundation's Agentic AI Foundation in late 2025.

  United States

• Kilo CodeSelf-hosted / open source

  Open-source VS Code/JetBrains extension (a fork of Roo Code), owned by America's Anaconda since July 2026.

  United States

• MeltyNon-EU vendor

  Open-source AI-native code editor (MIT) by Melty Labs (Y Combinator, San Francisco) that tracks commits and compiler errors in real time.

  United States

• Mistral CodeEU sovereign

  French AI code assistant with IDE plugins for VS Code and JetBrains, powered by Codestral

  France

View all open-source AI Coding vendors

• AutoGen (Microsoft)Non-EU vendor

  Open-source multi-agent framework from Microsoft Research where agents collaborate through conversation; in maintenance mode since October 2025. Controlled by Microsoft, not a community-governed project.

  United States

• CrewAINon-EU vendor

  Open-source Python framework for orchestrating autonomous AI agents that collaborate to solve complex tasks; backed by a real company (CrewAI Inc.), not a controlling-company-free project.

  United States

• DifyNon-EU vendor

  Open-source LLM application building platform (LangGenius Inc.) with RAG, agent capabilities and observability, deployable on cloud, VPC, or self-hosted.

  United States

• KernSelf-hosted / open source

  German autonomous AI agents for coworking that manage their own workflows independently

  Germany

• LangGraph (LangChain)Non-EU vendor

  LangChain's open-source graph-based framework for building stateful AI agents with explicit state management, checkpointing and human-in-the-loop capabilities; controlled by LangChain Inc., not a community-governed project.

  United States

• Nextcloud AssistantSelf-hosted / open source

  Open-source AI assistant built into the Nextcloud collaboration platform (Stuttgart, Germany), enabling on-premises/self-hosted content generation, summarization, translation and document analysis with open-source LLM backends, avoiding third-party data exposure. Actively offered as part of Nextcloud Hub in 2026.

  Germany

View all open-source AI Cowork vendors

• Arize AI / PhoenixNon-EU vendor

  Arize AI (Berkeley, US) builds the Arize AX platform and the open-source Phoenix library for LLM observability and evaluation, with an EU data-residency option.

  United States

• DeepchecksNon-EU vendor

  Open-source ML validation platform from Israeli company Deepchecks (Tel Aviv) providing comprehensive data and model testing from research to production.

  Israel

• Evidently AINon-EU vendor

  Open-source ML and LLM observability framework for evaluating, testing, and monitoring AI systems and data pipelines with 100+ built-in metrics; backed by a real company, not a controlling-company-free project.

  United States

• Garak (NVIDIA)Non-EU vendor

  Open-source LLM vulnerability scanner from NVIDIA's AI Red Team probing for hallucinations, data leakage, prompt injection, and jailbreaks across 50+ probe modules. Controlled by NVIDIA, not a community-governed project.

  United States

• GiskardEU sovereign

  French open-source platform for AI testing, red-teaming and guardrails.

  France

• Guardrails AINon-EU vendor

  Open-source Python framework for validating and structuring LLM outputs with 50+ pre-built validators and an optional managed service with observability dashboards.

  United States

View all open-source AI Security vendors

• AckeeSelf-hosted / open source

  German open-source, self-hosted web analytics with no cookies or unique visitor IDs; no managed hosted service offered.

  Germany

• AptabaseEU sovereign

  Romanian open-source, privacy-first analytics for mobile, desktop and web apps, self-hostable or managed.

  Romania

• CounterEU sovereign

  Open-source privacy-friendly web analytics with free plan

  Germany

• CountlyNon-EU vendor

  British product analytics platform for mobile and web

  United Kingdom

• Friendly AnalyticsEU sovereign

  Matomo-based managed analytics with tag manager from Switzerland

  Switzerland

• GoAccess (self-host)Self-hosted / open source

  Real-time log analyzer; self-hostable

  European Union (distributed)

View all open-source Analytics vendors

• Apache APISIXNon-EU vendor

  Open-source API gateway and management platform under the Apache Foundation

  United States

• ApimanNon-EU vendor

  Open-source API management platform with policy-driven governance and security

  United States

• BrunoSelf-hosted / open source

  Open-source, local-first API client (MIT) with no cloud component; stores collections as plain text files in your own Git repository.

  India

• Emissary-ingressSelf-hosted / open source

  CNCF Incubation project (community-governed, no single controlling company): Kubernetes-native API gateway on Envoy Proxy, originally by Ambassador Labs.

  United States

• FusioSelf-hosted / open source

  Open-source API management platform for building and managing REST APIs

  Germany

• Gloo EdgeNon-EU vendor

  Envoy-based API gateway by Solo.io (Cambridge, US) for microservice routing, traffic management and API lifecycle.

  United States

View all open-source API Management vendors

• ActivitiNon-EU vendor

  Open-source lightweight BPM and workflow engine for Java applications

  United Kingdom · owner in United States

• Apache AirflowSelf-hosted / open source

  The Apache Software Foundation standard for orchestrating batch-based data workflows and ETL processes via Python; no single controlling company.

  United States

• AutomatischSelf-hosted / open source

  German open-source workflow-automation alternative to Zapier.

  Germany

• BonitasoftEU sovereign

  French open-source BPM and low-code platform for process automation

  France · owner in Belgium

• CadenceSelf-hosted / open source

  Fault-tolerant, scalable workflow orchestration engine by Uber, now a CNCF Sandbox project; actively maintained and not superseded by the later fork Temporal.

  United States

• ConductorSelf-hosted / open source

  Open-source microservice orchestration engine, originally by Netflix, now maintained by Orkes (Cupertino, US) and the community; self-hostable with an optional Orkes Cloud.

  United States

View all open-source BPM & Workflow vendors

• BasiliskSelf-hosted / open source

  Free, open-source browser on the Unified XUL Platform (UXP); independently maintained, focused on stability and long-term maintainability.

  United States

• BraveNon-EU vendor

  US open-source privacy-focused browser with built-in ad blocker

  United States

• FalkonSelf-hosted / open source

  Open-source KDE browser, lightweight and cross-platform

  Germany

• FirefoxNon-EU vendor

  US open-source browser by Mozilla with strong privacy features

  United States

• FloorpNon-EU vendor

  Firefox-based browser with extra customisation options and privacy

  Japan

• GNOME WebSelf-hosted / open source

  Web browser by the GNOME project, formerly called Epiphany

  United States

View all open-source Browser vendors

• Benno MailArchivSelf-hosted / open source

  German, audit-proof enterprise email archiving system for GDPR/GoBD-compliant storage of millions of emails, integrable with any email/groupware system. Developed by LWsystems GmbH (Bad Iburg); core and web app under AGPLv3, some modules proprietary.

  Germany

• CipherMailSelf-hosted / open source

  Amsterdam-developed open-source email encryption gateway that centrally enforces S/MIME, PGP and PDF encryption for all outgoing organisational traffic, acting as a mail proxy between the firewall and internal mail server.

  Netherlands

• Cyrus IMAPSelf-hosted / open source

  Robust, community-maintained enterprise mail and calendar server, suited to organisations with tens of thousands of concurrent users. Originally Carnegie Mellon University (US, 1993); now governed by an independent, mainly US-based governance board, no controlling company.

  United States

• DovecotSelf-hosted / open source

  Open-source IMAP and POP3 server from Finland (Dovecot Oy), part of German Open-Xchange since 2017. High-performance storage and synchronisation of email within enterprise networks.

  Finland · owner in Germany

• EGroupwareEU sovereign

  German open-source groupware platform with email, CRM, project management and more

  Germany

• EximSelf-hosted / open source

  Flexible and highly configurable open-source Mail Transfer Agent, originating at the University of Cambridge (UK) and widely used in complex enterprise environments for advanced email routing. Community-maintained, no controlling company.

  United Kingdom

View all open-source Business Email & Groupware vendors

• Apache SupersetSelf-hosted / open source

  Powerful open-source BI platform from the Apache Software Foundation (US), scalable and cloud-native, connecting directly to 35+ SQL engines for large-scale data visualisation.

  United States

• CubeNon-EU vendor

  Open-source semantic layer and data API (dual MIT/Apache 2.0 licence) that structures and secures data sources before they are visualised in frontend apps or BI tools. Developed by Cube Inc. (San Francisco, US).

  United States

• EvidenceNon-EU vendor

  Code-first, open-source BI framework (MIT licence) for building dashboards as code (Markdown + SQL), fully manageable via Git version control. Developed by Evidence Inc. (Toronto, Canada).

  Canada

• KnowageSelf-hosted / open source

  Italian open-source BI platform from Engineering Group, evolved from the SpagoBI project.

  Italy

• LightdashNon-EU vendor

  Open-source BI platform (MIT licence) that integrates directly with dbt: metrics and dimensions are defined once in dbt YAML and reused across dashboards. Developed by Lightdash Ltd. (London, UK).

  United Kingdom

• MetabaseNon-EU vendor

  No-code BI tool for ad-hoc data exploration without SQL knowledge, with a free open-source edition (AGPLv3). Developed by Metabase Inc. (San Francisco, US).

  United States

View all open-source Business Intelligence vendors

• BlenderSelf-hosted / open source

  Open-source 3D creation suite for modeling, animation, rendering and compositing

  Netherlands

• FreeCADSelf-hosted / open source

  Open-source parametric 3D CAD modeler for product design and mechanical engineering

  Germany

• KiCadSelf-hosted / open source

  Open-source EDA suite for schematic capture and PCB layout, supported by CERN

  France

• LibreCADSelf-hosted / open source

  Open-source 2D CAD application for drafting and design

  Germany

• OpenFOAMNon-EU vendor

  Open-source CFD toolbox for computational fluid dynamics simulation

  United Kingdom · owner in United States

• OpenSCADSelf-hosted / open source

  Open-source script-based 3D CAD modeler focused on creating solid models

  Austria

View all open-source CAD & Engineering vendors

• ALTCHASelf-hosted / open source

  Czech open-source proof-of-work captcha alternative

  Czechia

• CaptchaService (Stad München)Self-hosted / open source

  Open-source framework by the City of Munich's IT department (it-at-m) wrapping ALTCHA in a secure, multi-tenant Spring Boot microservice for government portals.

  Germany

• Gregwar Captcha BundleSelf-hosted / open source

  Widely-used, open-source web-rendering library (Symfony bundle) that generates inline image captchas on your own application server. Created by Grégoire Passault (Bordeaux, France); no controlling company.

  France

• mCaptchaSelf-hosted / open source

  Powerful open-source, standalone Proof-of-Work verification system (AGPL licence) with a full admin panel to dynamically adjust difficulty per form. Created by Aravinth Manivannan (India); no controlling company.

  India

• mosparoSelf-hosted / open source

  Open-source alternative to traditional captchas that checks form data in real time for suspicious patterns and spam traits, without tracking or external API calls. Maintained by the non-profit mosparo Association (Mellingen, Switzerland).

  Switzerland

• Swetrix CAPTCHANon-EU vendor

  Privacy-first, open-source proof-of-work verification tool (npm package @swetrix/captcha) by Swetrix Ltd, integrating seamlessly with their sovereign web-analytics platform. Registered in Edinburgh, UK; data hosted in the EU.

  United Kingdom

View all open-source Captcha & Bot Detection vendors

• Apache Traffic ServerSelf-hosted / open source

  Fast, scalable open-source caching proxy server used by large global networks as a CDN building block. A project of the Apache Software Foundation (US).

  United States

• BIND9Non-EU vendor

  The most traditional and versatile open-source DNS suite in the world (authoritative and/or recursive in one binary), essential for complex enterprise zone transfers. Maintained by ISC (Internet Systems Consortium, US).

  United States

• CoreDNSSelf-hosted / open source

  Flexible, Go-based open-source DNS server that is the standard for service discovery within cloud-native Kubernetes environments. A CNCF (Cloud Native Computing Foundation) project.

  United States

• deSECEU sovereign

  Free DNS hosting with DNSSEC support run by a German non-profit

  Germany

• DNSControlNon-EU vendor

  Open-source system for managing DNS zones as code (DNS-as-Code) via Git pipelines, compatible with 74+ providers. Developed by Stack Exchange, Inc. (New York, US).

  United States

• Envoy ProxySelf-hosted / open source

  Open-source edge and service proxy designed for large-scale cloud-native service meshes, with full control over data routing. Originally built at Lyft, now a CNCF project.

  United States

View all open-source CDN, DNS & Domains vendors

• OpenStackSelf-hosted / open source

  Open-source IaaS platform (Apache-2.0) under the OpenInfra Foundation (US) for private clouds; runs in your own data centre.

  United States

View all open-source Cloud IaaS vendors

• Apache TomcatSelf-hosted / open source

  Open-source Java servlet container (Apache-2.0) by the Apache Software Foundation (US); self-hostable.

  United States

• CapRoverSelf-hosted / open source

  Self-hosted PaaS platform (Docker + nginx) that was open source under Apache 2.0 until July 2023. Since v1.x (July 2023) the project uses a custom restricted licence: paid features may not be modified or redistributed without a written agreement, and a mandatory EULA applies. The free/community tier remains source-available but the project is no longer open source under the OSI definition.

  Germany

• CoolifySelf-hosted / open source

  Open-source self-hostable PaaS as a Heroku/Netlify alternative

  Hungary

• DokkuSelf-hosted / open source

  Lightweight open-source PaaS based on Docker for small projects

  United States

• EncoreSelf-hosted / open source

  Swedish open-source backend-development platform (Stockholm) with an infrastructure-from-code approach for TypeScript/Go.

  Sweden

• NhostEU sovereign

  Swedish open-source Firebase-alternative with GraphQL and Postgres

  Sweden

View all open-source Cloud PaaS vendors

• Cozy CloudEU sovereign

  Personal cloud and data management platform originally developed by Cozy Cloud SAS (FR); acquired by Linagora (FR) via court-supervised cession plan in February 2025 and integrated into the Twake Workplace suite from May 2025. Open-source (AGPL), hosted in France.

  France

• CrypteeEU sovereign

  Estonian end-to-end encrypted cloud storage and documents, open source.

  Estonia

• EnteNon-EU vendor

  Encrypted photo storage and backup as Google Photos alternative

  United States

• FilenEU sovereign

  German zero-knowledge encrypted cloud storage with high security

  Germany

• InternxtEU sovereign

  Spanish privacy cloud storage with zero-knowledge encryption

  Spain

• Murena CloudEU sovereign

  Privacy-focused cloud storage linked to the /e/OS ecosystem

  France

View all open-source Cloud Storage (Personal) vendors

• Cockpit CMSSelf-hosted / open source

  Open-source headless CMS with JSON API and flexible content models

  Germany

• ContaoSelf-hosted / open source

  German CMS widely used in DACH region; self-hostable

  Germany

• Drupal (self-host)Self-hosted / open source

  Open-source enterprise CMS; self-hostable in EU

  United States

• GhostSelf-hosted / open source

  Open-source publishing platform for professional bloggers and publishers

  Singapore

• Grav (self-host)Self-hosted / open source

  Flat-file CMS; self-hostable

  United States

• KeystoneJSNon-EU vendor

  Open-source headless CMS and application platform built on Node.js

  Australia

View all open-source CMS vendors

• BigBlueButton (self-host)Self-hosted / open source

  Virtual classroom and video conferencing; self-hostable

  European Union (distributed)

• CryptPadEU sovereign

  End-to-end encrypted collaboration (FR/EU).

  France

• Element (Matrix)Non-EU vendor

  Decentralised messaging based on the open Matrix protocol

  United Kingdom

• FluffyChatSelf-hosted / open source

  Open-source Matrix chat client with focus on simplicity and privacy

  Germany

• HedgeDocSelf-hosted / open source

  Markdown collaboration; self-host.

  Germany

• HulySelf-hosted / open source

  Open-source project management and team collaboration platform (self-hosted only — vendor-hosted cloud service shut down in 2026 due to funding; huly.io hosted service discontinued)

  France

View all open-source Collaboration vendors

• CookieConsent (Orestbida)Self-hosted / open source

  Extremely fast, cross-browser open-source vanilla-JS cookie consent library (MIT licence) with zero external dependencies. Created by Orest Bida, a freelance developer in Italy.

  Italy

• GDPR Cookie ComplianceNon-EU vendor

  Open-source WordPress plugin (GPL) for storing consent locally in your own database, free of external SaaS dashboards. Used on 300,000+ websites. Developed by Moove Agency (United Kingdom).

  United Kingdom

• KlaroSelf-hosted / open source

  Open-source, privacy-friendly consent manager with GDPR compliance, maintained by Germany's KIProtect GmbH.

  Germany

• Tarteaucitron.jsSelf-hosted / open source

  Open-source cookie consent library, recommended for years by the French privacy regulator CNIL. Supports hundreds of scripts out of the box. Created by Amauri Champeaux, an independent developer in Béziers, France.

  France

View all open-source Consent Management (CMP) vendors

• Axelor CRMEU sovereign

  French open-source CRM module as part of the Axelor ERP platform

  France

• CiviCRMSelf-hosted / open source

  Open-source CRM for associations.

  United States

• DolibarrSelf-hosted / open source

  French open-source ERP/CRM.

  France

• ErxesNon-EU vendor

  Open-source experience operating system with CRM capabilities

  United States

• EspoCRMNon-EU vendor

  Latvian open-source CRM focused on simplicity and customisation

  United States

• KrayinSelf-hosted / open source

  Krayin CRM is an open-source Laravel CRM developed by Webkul Software, headquartered in Noida, India.

  India

View all open-source CRM vendors

• Apache UnomiSelf-hosted / open source

  Open-source customer data server from the Apache Software Foundation implementing the OASIS CDP specification; no single controlling company, self-hostable in any region.

  United States

• JitsuSelf-hosted / open source

  MIT-licensed open-source data integration and event-collection platform, typically self-hosted on customer infrastructure; backed by a real company (Jitsu Inc.), not a controlling-company-free project.

  United States

• MultiwovenSelf-hosted / open source

  Multiwoven is an open-source reverse-ETL/CDP tool under AGPLv3, now maintained by AI Squared, Inc. (Washington DC, US) following its 2024 acquisition.

  United States

• RudderStackNon-EU vendor

  US, open-source warehouse-native customer data platform that routes customer data directly into the customer's own data warehouse instead of storing it itself.

  United States

• SnowplowSelf-hosted / open source

  Open-source (Apache 2.0) behavioural data pipeline for collecting, validating, and enriching event data; supports EU data residency via self-hosting on AWS/GCP/Azure EU regions.

  United Kingdom

• ZinggNon-EU vendor

  Open-source, machine-learning-based platform for enterprise Identity Resolution, resolving duplicate customer profiles within a data lake. US company (San Francisco).

  United States

View all open-source Customer Data Platform (CDP) vendors

• CrowdSecEU sovereign

  French open-source collaborative intrusion prevention system

  France

• Elastic SecurityEU sovereign

  Dutch open-source SIEM and endpoint security powered by Elasticsearch

  Netherlands

• GreenboneEU sovereign

  German vulnerability management.

  Germany

• InmantaSelf-hosted / open source

  Belgian platform for network automation and security configuration management

  Belgium

• MISPSelf-hosted / open source

  EU threat sharing platform; self-host.

  Luxembourg

• NetBirdEU sovereign

  EU WireGuard-based ZTNA/VPN control plane.

  Germany

View all open-source Cybersecurity vendors

• Apache AtlasSelf-hosted / open source

  The traditional open-source heavyweight from the Apache Software Foundation for governance and metadata management within enterprise data lakes and Hadoop/Spark ecosystems.

  United States

• Apache KnoxSelf-hosted / open source

  Open-source application gateway acting as a central access point for authentication, authorisation and perimeter security around enterprise data lakes. A project of the Apache Software Foundation.

  United States

• Apache RangerSelf-hosted / open source

  Open-source framework to manage and audit centralised security and access rights (data access governance) across complex enterprise data platforms (Hive, HBase, Kafka, Solr). A project of the Apache Software Foundation.

  United States

• CKANNon-EU vendor

  The global open-source standard for data portals and catalogs, heavily used by European governments for open-data governance (incl. data.europa.eu, data.gov.uk, govdata.de). Governed by the Open Knowledge Foundation (UK).

  United Kingdom

• Data Contract CLISelf-hosted / open source

  Open-source command-line tool (MIT licence) to create and validate 'data contracts', preventing changes in production systems from unexpectedly breaking downstream reports. Developed by consultants at INNOQ (Germany).

  Germany

• DataHubNon-EU vendor

  Popular open-source enterprise data catalog (originally LinkedIn OSS) with real-time metadata ingestion and advanced data lineage visualisation. Commercially maintained by Acryl Data Inc. (Mountain View, US).

  United States

View all open-source Data Governance & MDM vendors

• Apache CamelSelf-hosted / open source

  Apache Software Foundation integration framework for routing and mediation between systems; actively maintained with 1,100+ contributors and 450+ companies involved.

  United States

• Apache KafkaSelf-hosted / open source

  Open-source event-streaming platform from the Apache Software Foundation (US); self-hostable.

  United States

• Apache NiFiNon-EU vendor

  Open-source dataflow platform for automating data movement between systems

  United States

• DagsterSelf-hosted / open source

  Dagster is an open-source, Apache-2.0 licensed data orchestration tool from Dagster Labs (US) for building and observing data pipelines.

  United States

• dlt (dltHub)Self-hosted / open source

  German (Berlin) company behind dlt, an open-source Python library for data loading/pipelines.

  Germany

• KNIMEEU sovereign

  Swiss open-source platform for data analysis, ETL and machine learning workflows

  Switzerland

View all open-source Data Integration & ETL vendors

• Apache BeamSelf-hosted / open source

  Apache Software Foundation project providing a unified batch and streaming data-processing programming model; actively maintained with releases roughly every six weeks and a broad multi-company contributor base.

  United States

• Apache DorisSelf-hosted / open source

  Open-source real-time OLAP database for analytical workloads.

  United States

• Apache DruidSelf-hosted / open source

  Open-source real-time OLAP analytics database (Apache Software Foundation) with sub-second queries on streaming and batch data.

  United States

• Apache FlinkSelf-hosted / open source

  Open-source stream and batch processing engine for real-time data.

  United States

• Apache HopSelf-hosted / open source

  Open-source visual ETL and data-integration tool, successor to Pentaho Kettle.

  United States

• Apache HudiSelf-hosted / open source

  Open-source table format for transactional data lakehouses.

  United States

View all open-source Data Platform & Warehouse vendors

• Apache CassandraSelf-hosted / open source

  Proven open-source distributed NoSQL database for massive datasets.

  United States

• Apache CouchDBSelf-hosted / open source

  Open-source document database with JSON storage and HTTP API.

  United States

• ArangoDBSelf-hosted / open source

  German open-source multi-model database (document, graph, key-value).

  Germany

• ChromaSelf-hosted / open source

  Open-source AI-native vector database for embeddings in LLM applications.

  United States

• ClickHouseNon-EU vendor

  Open-source column-store database for fast analytical queries (Yandex origin)

  United States

• CrateDBNon-EU vendor

  Distributed SQL database optimised for machine data and IoT applications

  United States

View all open-source Database & Data Management vendors

• darktableSelf-hosted / open source

  Open-source RAW workflow tool.

  Germany

• diagrams.netNon-EU vendor

  Open-source diagram tool (formerly draw.io) for technical and business diagrams

  United Kingdom

• ExcalidrawEU sovereign

  Open-source virtual whiteboard for sketches and diagrams

  Czechia

• GIMPSelf-hosted / open source

  Open-source image editor.

  Germany

• InkscapeSelf-hosted / open source

  Open-source vector editor.

  Germany

• KritaSelf-hosted / open source

  Dutch-led open-source painting/editor.

  Netherlands

View all open-source Design vendors

• Alpine LinuxSelf-hosted / open source

  Lightweight and secure Linux distribution, popular for containers and embedded

  Spain

• ALT LinuxNon-EU vendor

  Russian-European Linux distribution with Sisyphus repository

  Russia

• DebianSelf-hosted / open source

  Stable and free Linux distribution, basis for many other distributions

  United States

• elementary OSNon-EU vendor

  Elegant Linux distribution with macOS-like interface and own AppCenter

  United States

• EndeavourOSSelf-hosted / open source

  Arch-based Linux distribution with accessible installation and community

  Netherlands

• Fedora WorkstationSelf-hosted / open source

  Community-driven Linux distribution sponsored by Red Hat with focus on innovation

  United States

View all open-source Desktop OS vendors

• Cachet (self-host)Self-hosted / open source

  Self-hosted status page

  United Kingdom

• CFEngineSelf-hosted / open source

  Norwegian (Oslo, Northern.tech); open source configuration management for large-scale IT automation.

  Norway

• CheckmkEU sovereign

  Checkmk is an open-source IT infrastructure monitoring platform developed by Checkmk GmbH (Munich, Germany). In February 2025, US growth-equity firm PSG Equity acquired a majority controlling stake, making PSG (US) the ultimate parent. The software itself remains open source, but the company is no longer EU-controlled.

  Germany

• CodebergEU sovereign

  German non-profit Git hosting as an alternative to GitHub and GitLab

  Germany

• Concourse CISelf-hosted / open source

  Open-source CI/CD system with container-based pipelines

  United Kingdom

• Drone (Harness)Non-EU vendor

  US open-source container-native CI/CD platform

  United States

View all open-source DevOps vendors

• AtroDAMSelf-hosted / open source

  German fully open-source DAM system (Regensburg, GPLv3) with built-in product-information management, from AtroCore GmbH.

  Germany

• PhraseaSelf-hosted / open source

  French next-generation open-source DAM (Paris, GPL3) with an API-first architecture, from Alchemy SARL.

  France

• RazunaSelf-hosted / open source

  Danish open-source DAM platform (Aarhus) for brand management with media ingestion, search and distribution.

  Denmark

• ResourceSpaceSelf-hosted / open source

  British open-source DAM for self-hosting, popular with museums, NGOs and public sector

  United Kingdom

View all open-source Digital Asset Management vendors

• Anthias (Screenly OSE)Self-hosted / open source

  Open-source digital signage platform for Raspberry Pi, formerly Screenly OSE

  Sweden

• ConcertoSelf-hosted / open source

  Open-source (Apache 2.0) digital signage CMS originating at Rensselaer Polytechnic Institute (US); no controlling company, Docker-deployable.

  United States

• XiboNon-EU vendor

  Open-source digital signage content management system with scheduling capabilities

  United Kingdom

View all open-source Digital Signage vendors

• AdGuard HomeSelf-hosted / open source

  Open-source DNS server for blocking ads and tracking at network level

  Cyprus

• BlockySelf-hosted / open source

  Lightweight open-source DNS proxy and blocker written in Go

  Germany

• DNS.SBSelf-hosted / open source

  German privacy-first DNS resolver (xTom GmbH, Düsseldorf) with no query or IP logging.

  Germany

• dnscrypt-proxySelf-hosted / open source

  Open-source DNS proxy with support for encrypted DNS protocols

  France

• dnsmasqSelf-hosted / open source

  Dnsmasq is a lightweight, self-hosted DNS forwarder/cache with an integrated DHCP server, actively maintained by Simon Kelley (UK), with a 2.93 release in 2026.

  United Kingdom

• Freifunk München DNSEU sovereign

  Free, filter-free DNS resolver run by the German non-profit Freifunk München, hosted entirely within the EU (Munich and Vienna) with DoH/DoT/DoQ support.

  Germany

View all open-source DNS Privacy & Filtering vendors

• agorumEU sovereign

  open-source DMS and ECM platform from Germany with modular architecture

  Germany

• AlfrescoNon-EU vendor

  open-source content services platform for enterprise content management and workflow

  United Kingdom · owner in United States

• BlueSpiceSelf-hosted / open source

  German enterprise wiki and knowledge base built on MediaWiki, open source.

  Germany

• ConstellioSelf-hosted / open source

  Canadian open-source EIM platform with document management, records management and enterprise search.

  Canada

• LogicalDOCEU sovereign

  Italian open-source DMS with full-text search and document version management

  Italy

• NuxeoEU-hosted, non-EU parent

  Nuxeo is a French open-source content management platform acquired by Hyland Software (Westlake, Ohio, USA) in April 2021. The product continues to operate under its own brand but is fully owned by a US parent company, removing the eu-strict sovereignty classification.

  France · owner in United States

View all open-source Document Management (DMS) vendors

• AkeneoEU sovereign

  French product information management (PIM) platform for e-commerce product data

  France

• BagistoNon-EU vendor

  Open-source Laravel-based e-commerce platform with multi-tenant marketplace support

  India

• ErgonodeEU sovereign

  Polish open-source PIM system for product information management in e-commerce

  Poland

• MedusaEU sovereign

  Danish open-source headless commerce engine built with Node.js

  Denmark

• PrestaShopEU sovereign

  French open-source e-commerce platform powering hundreds of thousands of online stores worldwide

  France · owner in Poland

• SaleorEU sovereign

  Polish open-source headless e-commerce platform built with Python and GraphQL

  Poland

View all open-source E-commerce vendors

• Adapt FrameworkSelf-hosted / open source

  UK open-source, responsive e-learning authoring tool.

  United Kingdom

• Adapt LearningNon-EU vendor

  British open-source framework for building responsive e-learning courses

  United States

• eXeLearningSelf-hosted / open source

  Spanish government-backed open-source authoring tool for educational content.

  Spain

• H5PEU-hosted, non-EU parent

  H5P is an open-source interactive content framework originally built by H5P Group AS (Norway). H5P Group was fully acquired by D2L Inc. (Kitchener, Canada; TSX: DTOL) on July 9, 2024 for up to US$33M. The Norwegian entity continues to operate, but the ultimate parent is now Canadian.

  Norway · owner in Canada

• LumiEU sovereign

  Open-source desktop editor for H5P content without server installation

  Germany

• SQL-LRSSelf-hosted / open source

  Open-source reference Learning Record Store for xAPI data, by ADL (US defense initiative).

  United States

View all open-source E-learning Authoring vendors

• BigBlueButtonSelf-hosted / open source

  Open-source web conferencing system designed specifically for online learning

  Canada

• Canvas LMSSelf-hosted / open source

  US open-source LMS (AGPLv3) by Instructure, used globally by educational institutions.

  United States

• ChamiloSelf-hosted / open source

  Belgian open-source e-learning and collaboration platform for education and enterprises

  Belgium

• Forma LMSSelf-hosted / open source

  Italian open-source learning management system designed for corporate training

  Italy

• H5PEU-hosted, non-EU parent

  H5P is an open-source interactive content framework originally built by H5P Group AS (Norway). H5P Group was fully acquired by D2L Inc. (Kitchener, Canada; TSX: DTOL) on July 9, 2024 for up to US$33M. The Norwegian entity continues to operate, but the ultimate parent is now Canadian.

  Norway · owner in Canada

• ILIASSelf-hosted / open source

  German open-source learning management system used by universities and organisations across Europe

  Germany

View all open-source Education & LMS vendors

• CaliopenSelf-hosted / open source

  Open-source unified secure messaging platform combining email and encrypted messaging, relocated from France to Luxembourg to avoid French surveillance law.

  Luxembourg

• DisrootEU sovereign

  Dutch nonprofit collective offering privacy-focused, donation-funded email and services.

  Netherlands

• mailcow (self-host)Self-hosted / open source

  Self-hosted mailserver stack; EU-operated

  Germany

• RiseupSelf-hosted / open source

  US volunteer-run nonprofit (Riseup Labs) providing free secure email and online services for activists.

  United States

• Roundcube (self-host)Self-hosted / open source

  Webmail client; self-hostable

  European Union (distributed) · owner in Germany

• TutaEU sovereign

  German open-source encrypted email service

  Germany

View all open-source Email (Personal) vendors

• opsiSelf-hosted / open source

  German (Mainz, uib GmbH); open source client management system for Windows and Linux devices.

  Germany

View all open-source Endpoint & Device Management vendors

• Apache SolrSelf-hosted / open source

  Open-source (Apache 2.0) enterprise search platform from the Apache Software Foundation with full-text, vector and geospatial search.

  United States

• DatafariSelf-hosted / open source

  French open-source enterprise search solution built on Apache Solr, maintained by France Labs; self-hosted deployment.

  France

• ElasticsearchEU sovereign

  Distributed, open-source search engine and analytics platform with commercial enterprise features; Netherlands-headquartered with major US operations.

  Netherlands

• OpenSearchSelf-hosted / open source

  100% Apache 2.0 licensed open-source search and analytics suite; community-driven fork of Elasticsearch, now governed under the Linux Foundation.

  United States

• TypesenseSelf-hosted / open source

  Open-source (GPL-3.0) typo-tolerant search engine (Los Angeles) as an alternative to Algolia and Elasticsearch, with self-hosted and SaaS options.

  United States

View all open-source Enterprise Search vendors

• ERPNext (self-host)Self-hosted / open source

  Open-source ERP; self-hostable in EU

  India

• KimaiEU sovereign

  Open-source time tracking application with invoicing integrations

  Germany

• KivitendoSelf-hosted / open source

  Open-source ERP system for accounting and goods management, popular in Germany

  Germany

• OdooEU sovereign

  Open-source suite of business apps including ERP, CRM, accounting and HR

  Belgium

View all open-source ERP & Finance vendors

• BugsinkEU sovereign

  Dutch self-hosted error tracking, Sentry SDK compatible

  Netherlands

• GlitchTipEU sovereign

  German open-source error-tracking platform, Sentry-compatible.

  Germany

• HyperDXSelf-hosted / open source

  Open-source observability platform (logs, metrics, traces, errors) built on ClickHouse and OpenTelemetry, owned by ClickHouse.

  United States

• OneUptimeSelf-hosted / open source

  US open-source (Apache 2.0) monitoring, observability and error-tracking platform.

  United States

View all open-source Error Tracking vendors

• ConfigCatEU sovereign

  Feature flag and configuration management platform with open-source SDKs and GDPR-compliant EU hosting by default.

  Hungary

• ConfiguSelf-hosted / open source

  Open-source configuration and feature flag management platform enabling teams to orchestrate environment variables, secrets and flags.

  Israel

• FeatBitSelf-hosted / open source

  French open-source (MIT) AI-native feature-flag and A/B-testing platform, founded 2021.

  France

• FlagsmithNon-EU vendor

  UK open-source feature-flag management platform with remote configuration, A/B testing and a self-hosting option.

  United Kingdom

• FliptSelf-hosted / open source

  Open-source (MIT/Fair Core) Git-native feature flag platform storing flags in version control and deploying via CI/CD pipelines.

  United States

• GrowthBookNon-EU vendor

  Open-source feature-flagging and A/B-testing experimentation platform with MIT license; primarily for product experimentation, not comprehensive CDP functionality. Backed by a real YC-funded company (GrowthBook Inc.), not a controlling-company-free project.

  United States

View all open-source Feature Flagging & Experimentation vendors

• InfracostSelf-hosted / open source

  Open-source infrastructure cost estimation tool for Terraform showing cost breakdowns and diffs in pull requests.

  United Kingdom

• Kubecost (IBM)Non-EU vendor

  Open-source Kubernetes cost monitoring (Apache 2.0); part of IBM since its 2023 acquisition of Apptio.

  United States

• OpenCostSelf-hosted / open source

  CNCF Incubating project providing a vendor-neutral, open-source standard for Kubernetes cloud cost monitoring and allocation.

  United States

• OptScaleSelf-hosted / open source

  US open-source (Apache 2.0) MLOps and FinOps platform (Hystax) for cloud-cost analytics.

  United States

View all open-source FinOps & Cloud Cost Management vendors

• CryptPad FormsEU sovereign

  Encrypted forms and surveys within CryptPad

  France

• FormbricksEU sovereign

  German open-source survey and experience management

  Germany

• FramaformsEU sovereign

  French privacy-friendly forms (association)

  France

• HeyFormNon-EU vendor

  Open-source conversational form builder for surveys and feedback

  United States

• LimeSurvey (self-host)EU sovereign

  German survey platform; self-hostable

  Germany

• Nextcloud FormsSelf-hosted / open source

  Forms app for Nextcloud; self-hostable

  Germany

View all open-source Forms & Surveys vendors

• 52°NorthSelf-hosted / open source

  German research institute that develops open-source geospatial software

  Germany

• CamptocampSelf-hosted / open source

  Swiss company specialised in open-source GIS and geospatial web applications

  Switzerland

• GeoNodeSelf-hosted / open source

  Open-source platform for managing and publishing geospatial data and maps

  United States

• GeoServerSelf-hosted / open source

  Open-source server for sharing geospatial data via OGC standards such as WMS and WFS

  Italy

• GRASS GISSelf-hosted / open source

  Open-source GIS for advanced raster, vector and spatial analyses

  Italy

• lat/lonSelf-hosted / open source

  German company that develops the deegree open-source web services for INSPIRE directives

  Germany

View all open-source GIS & Geospatial vendors

• dcm4che (self-host)Self-hosted / open source

  DICOM toolkit and server; self-hostable in EU

  Austria

• OpenEMR (EU-host pattern)Self-hosted / open source

  Self-hosted EHR pattern under EU operator control

  European Union (distributed)

• OpenMRSSelf-hosted / open source

  Open-source medical record system for healthcare in developing countries

  European Union (distributed)

• Orthanc (self-host)Self-hosted / open source

  DICOM server; self-hostable in EU

  Belgium

View all open-source Healthcare vendors

• DeskproSelf-hosted / open source

  Self-hostable help desk platform, focused on data sovereignty with an EU sovereign-cloud option.

  United States

• Faveo HelpdeskSelf-hosted / open source

  Indian open-source ticketing system (PHP/Laravel) with unlimited agents.

  India

• FreeScoutSelf-hosted / open source

  Open-source helpdesk and shared mailbox, comparable to Help Scout

  Netherlands

• osTicketSelf-hosted / open source

  Open-source helpdesk and ticketing system by Enhancesoft LLC (US), self-hostable.

  United States

• UVdeskNon-EU vendor

  Open-source helpdesk platform built on Symfony with SLA management and knowledge base

  India

• ZammadEU sovereign

  German open-source helpdesk system with ticketing, live chat and knowledge base

  Germany

View all open-source Helpdesk & Customer Service vendors

• OrangeHRMNon-EU vendor

  Open-source HR management system for SMEs

  United Kingdom

• TimeTrexSelf-hosted / open source

  Canadian open-source payroll, time-tracking and HR platform.

  Canada

View all open-source HR vendors

• AuthentikNon-EU vendor

  authentik is an open-source identity provider (MIT-licensed core) developed by US company Authentik Security Inc. (Delaware PBC, Philadelphia PA), backed by Open Core Ventures. An enterprise tier with additional features is available as source-available software.

  United States · owner in United States

• Evolveum midPointSelf-hosted / open source

  Slovak open-source identity governance and administration platform

  Slovakia

• FreeIPASelf-hosted / open source

  FreeIPA is a free, open-source (GPLv3) identity management suite sponsored by Red Hat (a US/IBM subsidiary), developed primarily at Red Hat Czech s.r.o. in Brno. Deployed as self-hosted software; ultimate control rests with IBM/Red Hat (US).

  Czechia · owner in United States

• GluuNon-EU vendor

  Open-source identity and access management platform with EU hosting

  United States

• HankoEU sovereign

  EU passkey-first authentication components for customer identity

  Germany

• KanidmSelf-hosted / open source

  Open-source identity/directory; self-hostable.

  Germany

View all open-source Identity vendors

• BalenaNon-EU vendor

  British platform for managing and deploying IoT fleets on Linux devices

  United Kingdom

• ChirpStackSelf-hosted / open source

  Dutch open-source (MIT) LoRaWAN network server, community-driven.

  Netherlands

• Eclipse IoTSelf-hosted / open source

  Open-source IoT framework under the Eclipse Foundation with tools like Mosquitto and Hono

  Belgium

• EMQXSelf-hosted / open source

  Chinese open-source (Apache 2.0) MQTT broker (Hangzhou) with 20M+ downloads and 1,500+ enterprise customers.

  China

• FIWARESelf-hosted / open source

  Open-source EU platform for smart solutions in cities, industry and agriculture

  Germany

• MenderSelf-hosted / open source

  US open-source (Apache 2.0) OTA device-management platform within the Linux Foundation ecosystem.

  United States

View all open-source IoT & Embedded vendors

• Combodo iTopEU sovereign

  French open-source ITSM platform with CMDB and incident management

  France

• GLPIEU sovereign

  French ITSM/asset OSS.

  France

• i-doitEU sovereign

  German CMDB.

  Germany · owner in Netherlands

• iTopEU sovereign

  Self-host ITSM/CMDB (EU-hostable).

  France

• osTicketSelf-hosted / open source

  Open-source helpdesk and ticketing system by Enhancesoft LLC (US), self-hostable.

  United States

• OtoboSelf-hosted / open source

  Open-source ITSM and help-desk platform by Rother OSS GmbH (Oberasbach, Bavaria), an active fork of OTRS Community Edition with modern feature development

  Germany

View all open-source ITSM vendors

• Edissyum (Open-Capture)Self-hosted / open source

  French electronic-document-management specialist developing Open-Capture, a 100% open-source (GPL v3) document-capture and IDP solution.

  France

View all open-source Legal Tech vendors

• ActivepiecesSelf-hosted / open source

  Open-source (MIT) no-code automation platform, designed as a privacy-first Zapier alternative you can self-host within your own cloud.

  United States

• AppsmithNon-EU vendor

  Open-source low-code framework for building internal dashboards and admin panels

  United States

• BaserowEU sovereign

  Dutch open-source no-code database platform, alternative to Airtable

  Netherlands

• BudibaseNon-EU vendor

  Open-source low-code platform from the UK for building internal tools

  United Kingdom

• ConvertigoEU sovereign

  French open-source low-code platform for enterprise mobile and web applications

  France

• CortezaSelf-hosted / open source

  Open-source low-code platform for CRM, workflow and data management

  Ireland

View all open-source Low-code / No-code vendors

• BRouterSelf-hosted / open source

  Open-source cycling route planner with offline routing based on OSM

  Germany

• GraphHopperEU sovereign

  German open-source routing engine with fast calculations

  Germany

• MapLibreSelf-hosted / open source

  Open-source map library as a community fork of Mapbox GL JS

  Switzerland

• OpenRouteServiceEU sovereign

  German open-source routing service based on OpenStreetMap-data

  Germany

• OpenStreetMap (self-host tiles)Self-hosted / open source

  Open map data; host tiles and routing in EU

  European Union (distributed)

• Organic MapsSelf-hosted / open source

  Privacy-focused offline maps based on OpenStreetMap

  European Union (distributed)

View all open-source Maps & Navigation vendors

• AGNITASEU sovereign

  Munich-based email marketing and marketing automation vendor (AGNITAS AG), founded 1999. ISO 27001/27017/27018 triple-certified, German-hosted cloud infrastructure. Offers SaaS, private cloud, and on-premise licensing, plus a free open-source edition (OpenEMM). Serves banking, insurance, energy, logistics, and public-sector clients; actively developed with a 25th-anniversary release noted in 2024.

  Germany

• KeilaSelf-hosted / open source

  German open-source, self-hostable email-marketing platform.

  Germany

• ListmonkNon-EU vendor

  Self-hostable open-source newsletter and mailing list manager

  India

• MauticSelf-hosted / open source

  Open source marketing automation platform, community-owned under the Open Source Collective (US 501(c)(6) fiscal host). Trademark held by the Open Source Collective on behalf of the Mautic community following Acquia's 2019 acquisition and subsequent 2024/2025 brand transfer to the community.

  United States

View all open-source Marketing vendors

• BriarNon-EU vendor

  British open-source peer-to-peer encrypted messenger via Tor

  United Kingdom

• Conversations (XMPP)Self-hosted / open source

  XMPP chat client for Android with OMEMO encryption

  Germany

• CwtchSelf-hosted / open source

  Decentralised messaging platform with metadata protection via Tor

  Canada

• Delta ChatSelf-hosted / open source

  German open-source messenger via existing email infrastructure

  Germany

• DinoSelf-hosted / open source

  Modern XMPP desktop client with OMEMO encryption

  Germany

• Element (Matrix)Non-EU vendor

  British secure messaging platform on the open Matrix protocol

  United Kingdom

View all open-source Messaging vendors

• Funkwhale (self-host)Self-hosted / open source

  Federated open-source music streaming; self-hostable

  France

• Navidrome (self-host)Self-hosted / open source

  Open-source personal music streaming server

  European Union (distributed)

View all open-source Music Streaming vendors

• Deciso OPNsenseSelf-hosted / open source

  Dutch; open source firewall and routing platform (OPNsense), with commercial appliances and support.

  Netherlands

• Endian UTMSelf-hosted / open source

  Italian; Unified Threat Management firewalls with open source origins (Endian Firewall).

  Italy

• HAProxySelf-hosted / open source

  Open-source load balancer and reverse proxy (GPL-2/LGPL); commercial editions and support by HAProxy Technologies (Waltham, MA, French origin). Self-hostable.

  United States

• IPFireSelf-hosted / open source

  German; open source Linux firewall, developed with commercial support from Lightning Wire Labs.

  Germany

• Open vSwitchSelf-hosted / open source

  Open-source multilayer virtual switch for software-defined networking, maintained as a Linux Foundation project; self-hosted and actively maintained (latest release 3.5.2, November 2025).

  United States

• SKUDONETSelf-hosted / open source

  Spanish; open source and commercial load balancer / application delivery controller (formerly Zevenet).

  Spain

View all open-source Network & Firewall Management vendors

• CactiSelf-hosted / open source

  Open-source network and server monitoring based on RRDtool (GPL-2), maintained by The Cacti Group (US); self-hostable in your own data centre.

  United States

• CentreonEU sovereign

  French open-source IT monitoring platform for hybrid infrastructures

  France

• CheckmkEU sovereign

  Checkmk is an open-source IT infrastructure monitoring platform developed by Checkmk GmbH (Munich, Germany). In February 2025, US growth-equity firm PSG Equity acquired a majority controlling stake, making PSG (US) the ultimate parent. The software itself remains open source, but the company is no longer EU-controlled.

  Germany

• collectdSelf-hosted / open source

  German (Nuremberg) open-source (GPL/LGPL) system-statistics collection daemon written in C, with 100+ plugins for gathering performance metrics from systems and applications since 2005.

  Germany

• Grafana LabsNon-EU vendor

  Open-source observability platform with dashboards, founded in Sweden

  United States

• GraylogNon-EU vendor

  Graylog is a US-headquartered (Houston, TX) open-source log management and SIEM platform, originally founded in Hamburg, Germany. It is deployed in 50,000+ installations across 180 countries. The company raised $39M in growth funding from Silver Lake Waterman in 2023.

  United States

View all open-source Network & Monitoring vendors

• AppFlowyNon-EU vendor

  Open-source Notion alternative for notes, wikis and project management

  Singapore

• CarnetSelf-hosted / open source

  Open-source note-taking app with synchronisation via Nextcloud

  France

• CryptPadEU sovereign

  French encrypted collaborative editing platform

  France

• HedgeDocSelf-hosted / open source

  Collaborative Markdown editor for real-time collaboration on notes

  Germany

• JoplinEU sovereign

  French open-source note-taking app with sync and encryption

  France

• LogseqSelf-hosted / open source

  Open-source knowledge management tool with graphical view and local storage; developer in Singapore — sovereign when used locally

  Singapore

View all open-source Notes & Tasks vendors

• Calligra SuiteSelf-hosted / open source

  Open-source office suite by KDE e.V. (Berlin).

  Germany

• Collabora OnlineNon-EU vendor

  UK-based enterprise LibreOffice-powered online office suite for self-hosting and cloud

  United Kingdom

• CryptPadEU sovereign

  French end-to-end encrypted collaborative office suite with documents, sheets, and presentations

  France

• EGroupwareEU sovereign

  German open-source groupware suite with CRM, project management, and collaboration tools

  Germany

• EtherpadSelf-hosted / open source

  Open-source real-time collaborative text editor, widely deployed across European institutions

  United States

• Euro-OfficeSelf-hosted / open source

  Open-source, Microsoft-compatible office suite from a EuroStack consortium (IONOS, Nextcloud, XWiki, OpenProject, Soverin, Abilian, BTactic); tech preview March 2026, stable release summer 2026.

  Germany

View all open-source Office & Productivity vendors

• AuthPassSelf-hosted / open source

  Open-source password manager for mobile and desktop with KeePass support

  Austria

• BitwardenNon-EU vendor

  US open-source password manager with self-hosting option

  United States

• gopassSelf-hosted / open source

  German open-source team password management with GPG and git

  Germany

• KeePassSelf-hosted / open source

  German open-source offline password manager

  Germany

• KeePassXCSelf-hosted / open source

  Offline password manager; local-first

  European Union (distributed)

• KeeWebSelf-hosted / open source

  Open-source web-based password manager compatible with KeePass databases

  European Union (distributed)

View all open-source Password Manager vendors

• BorgBackupSelf-hosted / open source

  Deduplicating open-source backup tool with compression and encryption

  Germany

• Deja DupSelf-hosted / open source

  Simple open-source backup tool for GNOME with encryption and cloud storage

  United States

• DuplicatiSelf-hosted / open source

  Open-source backup software with encryption to cloud and local storage

  United States

• FreeFileSyncSelf-hosted / open source

  Open-source file synchronisation and backup tool with visual comparison

  Germany

• KopiaNon-EU vendor

  Open-source backup tool with snapshot-based deduplication and encryption

  United States

• Pika BackupSelf-hosted / open source

  Simple open-source backup tool for GNOME based on BorgBackup

  Germany

View all open-source Personal Backup & Sync vendors

• Blender Video EditorSelf-hosted / open source

  Built-in video editor in Blender for editing, compositing and motion tracking

  Netherlands

• darktableSelf-hosted / open source

  Open-source RAW photo editing and workflow application for photographers

  Germany

• digiKamSelf-hosted / open source

  Open-source photo management and editing application by the KDE project

  Germany

• ImmichSelf-hosted / open source

  Open-source self-hosted photo and video backup solution as Google Photos alternative

  United States

• KdenliveSelf-hosted / open source

  Open-source video editor by the KDE project with professional editing capabilities

  Germany

• NatronSelf-hosted / open source

  Open-source compositing software for visual effects and motion graphics

  France

View all open-source Photo & Video vendors

• Apache PinotSelf-hosted / open source

  Real-time distributed OLAP datastore from the Apache Software Foundation for low-latency analytics at scale, usable as the backend for real-time enterprise performance monitoring.

  United States

• MondrianSelf-hosted / open source

  Open-source ROLAP (relational OLAP) engine in Java for multidimensional analysis and reporting, originally developed under Pentaho and now part of Hitachi Vantara's portfolio.

  United States

View all open-source Planning & EPM vendors

• bupaRSelf-hosted / open source

  Belgian; open-source R package suite for business process analysis, developed by Hasselt University.

  Belgium

• PM4PySelf-hosted / open source

  Open-source Python library for process mining, maintained by Germany's Fraunhofer FIT, supporting process discovery and conformance checking fully locally.

  Germany

• ProMSelf-hosted / open source

  Dutch; open-source process mining toolkit, developed by TU Eindhoven (version 6.15, GPL license).

  Netherlands

• RobocorpSelf-hosted / open source

  Python-powered open-source automation stack for RPA, evolved from the Finnish Robot Framework ecosystem.

  United States

• Robot FrameworkSelf-hosted / open source

  Finnish; open-source test and RPA automation framework, maintained by the Robot Framework Foundation (Helsinki).

  Finland

• TagUISelf-hosted / open source

  Singaporean open-source command-line RPA tool, developed by AI Singapore, for automating web tasks and desktop applications.

  Singapore

View all open-source Process Mining & RPA vendors

• FiderSelf-hosted / open source

  UK open-source platform for collecting and prioritizing customer feedback via community voting.

  United Kingdom

• QuackbackSelf-hosted / open source

  UK open-source (AGPL-3.0) customer-feedback platform with AI sentiment analysis (Nottingham).

  United Kingdom

View all open-source Product Feedback & Roadmapping vendors

• BookStack (self-host)Self-hosted / open source

  Self-hosted documentation and wiki platform

  United Kingdom

• KanboardSelf-hosted / open source

  French open-source kanban project management

  France

• LeantimeEU sovereign

  German open-source project management for strategy and execution

  Germany

• OpenProjectEU sovereign

  German open-source project management software with Gantt, boards, and BIM

  Germany

• PlaneNon-EU vendor

  Indian open-source project management tool for product teams

  India

• ProjectLibreEU sovereign

  open-source desktopprojectmanagementtool as an alternative to Microsoft Project

  France

View all open-source Project Management vendors

• Apache GuacamoleSelf-hosted / open source

  Open-source clientless remote desktop gateway supporting VNC, RDP and SSH

  United States

• DWServiceSelf-hosted / open source

  Open-source remote access service accessible through a web browser

  Italy

• RustDeskSelf-hosted / open source

  Open-source remote desktop in Rust with self-hosting; originally a Chinese developer — only sovereign when self-hosted in your own infrastructure

  China

View all open-source Remote Desktop & Support vendors

• Easy!AppointmentsSelf-hosted / open source

  Open-source online booking system for scheduling appointments

  Greece

• PretixEU sovereign

  German open-source ticketing platform from Heidelberg for events and conferences

  Germany

View all open-source Scheduling & Booking vendors

• MetaGerEU sovereign

  German privacy search engine by SUMA-EV with anonymous proxy

  Germany

• SearXNGSelf-hosted / open source

  Self-hostable meta search engine that combines results from multiple sources

  Germany

• YaCySelf-hosted / open source

  Decentralised peer-to-peer search engine without a central server

  Germany

View all open-source Search Engines vendors

• AkkomaSelf-hosted / open source

  Fork of Pleroma with extra features for federated social networks

  Germany

• BlueskySelf-hosted / open source

  US decentralised social network built on the open AT Protocol, founded by Jack Dorsey.

  United States

• BookWyrmSelf-hosted / open source

  Federated social network for tracking and discussing books

  Germany

• DiasporaSelf-hosted / open source

  Decentralised social network with focus on privacy and data ownership

  Germany

• FriendicaSelf-hosted / open source

  Decentralised social network with support for diverse protocols

  Germany

• GNU SocialSelf-hosted / open source

  One of the oldest decentralised social networks, part of the GNU project

  European Union (distributed)

View all open-source Social Media vendors

• Bacula SystemsSelf-hosted / open source

  Swiss enterprise backup company (Yverdon-les-Bains) providing commercial support and an enterprise edition built on the open-source Bacula backup engine (AGPLv3 core); self-hosted, cross-platform (mixed OS, containers, cloud) backup used by organizations including NASA and Swisscom; confirmed actively trading in 2026 via current marketing content and recent blog posts.

  Switzerland

• BareosSelf-hosted / open source

  German open-source enterprise backup solution forked from Bacula

  Germany

• BorgBackupSelf-hosted / open source

  Open-source deduplicating archival backup program with compression and encryption

  Germany

• CephSelf-hosted / open source

  Open-source distributed storage system (object, block, and file); US-origin project under the Linux Foundation's Ceph Foundation. IBM is the lead commercial steward since January 2023 (formerly Red Hat). Licensed under LGPL.

  United States

• DuplicatiSelf-hosted / open source

  Open-source backup client storing encrypted backups on various cloud storage services

  United States

• LINBITSelf-hosted / open source

  Austrian company behind DRBD and LINSTOR for replicated block storage and high availability

  Austria

View all open-source Storage & Backup vendors

• Matomo Tag ManagerNon-EU vendor

  Open-source tag manager by Matomo (InnoCraft Ltd), self-hostable or as part of Matomo Cloud.

  New Zealand

View all open-source Tag Management vendors

• AsteriskSelf-hosted / open source

  Asterisk is an open-source PBX and telephony toolkit originally created by Mark Spencer at Digium, Inc. (Huntsville, Alabama, USA) in 1999. Digium was acquired by Canadian company Sangoma Technologies Corporation (Markham, Ontario) in 2018, making Sangoma (CA) the current sponsor and ultimate parent. The project has no German connection; the catalog's recorded DE/EU/eu-strict classification is incorrect.

  United States · owner in Canada

• KamailioSelf-hosted / open source

  Open-source SIP server for VoIP, WebRTC and real-time communications

  Germany

• WazoSelf-hosted / open source

  Open-source unified communications platform built on Asterisk

  France

View all open-source Telephony & VoIP vendors

• Apache JMeterSelf-hosted / open source

  Open-source load-testing tool by the Apache Software Foundation.

  United States

• AppiumSelf-hosted / open source

  Open-source mobile app automation framework under the OpenJS Foundation, for iOS, Android and Windows testing.

  United States

• Cerberus TestingSelf-hosted / open source

  100% open-source (GPLv3) low-code test automation platform for Web, iOS, Android and API testing; based in Willems, France, active as MVP since 2011/production since 2013.

  France

• GatlingEU sovereign

  French open-source load testing tool for web applications with Scala/Java DSL

  France

• k6 (Grafana Labs)EU sovereign

  Open-source load testing tool built for developer experience, by Grafana Labs

  Sweden

• PlaywrightSelf-hosted / open source

  Open-source cross-browser automation framework developed by Microsoft; self-hostable with no mandatory SaaS.

  United States

View all open-source Testing & QA vendors

• CattrSelf-hosted / open source

  Ukrainian open-source time tracker with activity detection and screenshots, multi-platform.

  Ukraine

• solidtimeSelf-hosted / open source

  solidtime is an open-source (AGPL-3.0) time tracking application built by a two-person Austrian partnership (GesbR) based in Vienna, Austria (Türkenstraße 19/1b, 1090 Wien). It is bootstrapped, has 8,600+ GitHub stars and 15,000+ users, and remains actively developed with updates as recent as June 2026. It markets itself as privacy-first and GDPR-friendly, offering both a self-hosted option and an EU-hosted managed service — no dependency on non-EU cloud infrastructure was found in verification.

  Austria

View all open-source Time Tracking vendors

• ApertiumSelf-hosted / open source

  Open-source rule-based machine translation platform (GNU GPL) originating from the Spanish government-funded OpenTrad project, developed by the Transducens research group at Universitat d'Alacant; specialized in under-resourced and minoritized languages, actively maintained (v3.9.12, April 2025) with over 100 language pairs as of 2026.

  Spain

• MateCatEU sovereign

  Open-source enterprise CAT tool for professional translators developed by Translated srl

  Italy

• ModernMTEU sovereign

  Adaptive neural machine translation engine that learns from translator corrections

  Italy

• TolgeeSelf-hosted / open source

  Czech open-source (Apache 2.0) developer-friendly localisation platform.

  Czechia

• WeblateEU sovereign

  Open-source web-based continuous localization platform for developers

  Czechia

View all open-source Translation & Localisation vendors

• PeerTube (EU-host)Self-hosted / open source

  Federated video hosting; hostable in EU

  France

View all open-source Video Streaming vendors

• Apache CloudStackSelf-hosted / open source

  Open-source IaaS platform for cloud orchestration, Apache Software Foundation.

  United States

• bhyveSelf-hosted / open source

  Native Type 2 hypervisor built into the FreeBSD kernel since version 10.0, maintained by the FreeBSD Foundation.

  United States

• FirecrackerSelf-hosted / open source

  US lightweight microVM monitor from AWS for fast, secure isolation of serverless workloads, boots in 125ms.

  United States

• GardenerSelf-hosted / open source

  Open-source Kubernetes-as-a-Service for scalable cluster management, governed by the NeoNephos Foundation (Linux Foundation Europe) since 2025

  Germany

• Giant SwarmEU sovereign

  German managed Kubernetes platform for enterprise cloud-native infrastructure

  Germany

• HarvesterSelf-hosted / open source

  Open-source hyperconverged infrastructure (HCI) solution by SUSE

  Luxembourg · owner in Sweden

View all open-source Virtualisation & Containers vendors

• CryptostormEU-hosted, non-EU parent

  Privacy VPN with token-based authentication without accounts

  Iceland · owner in Canada

• IVPNNon-EU vendor

  Privacy VPN from Gibraltar with open-source clients and no logs

  Gibraltar

• Mullvad VPNEU sovereign

  Swedish privacy-focused VPN with anonymous accounts and open-source client

  Sweden

• NymVPNSelf-hosted / open source

  Swiss mixnet VPN by Nym Technologies SA (Neuchâtel), open source, publicly launched March 2025.

  Switzerland

• Perfect PrivacyEU sovereign

  German VPN service with open-source client and zero-knowledge policy.

  Germany

• Private Internet AccessNon-EU vendor

  US-based VPN service owned by Kape Technologies

  United States · owner in United Kingdom

View all open-source VPN vendors

• AFFiNESelf-hosted / open source

  Singaporean open-source multimodal workspace combining docs, whiteboard and databases.

  Singapore

• tldrawSelf-hosted / open source

  Open-source infinite canvas and collaborative whiteboard SDK with real-time multiplayer, used by ClickUp and others, with AI integration.

  United States

View all open-source Whiteboarding & Visual Collaboration vendors

• CKEditorSelf-hosted / open source

  Rich text editor developed by CKSource (legally headquartered in Warsaw, Poland, ul. Okopowa 58/72), distributed under a dual GPL/commercial licence. Actively sold in 2026 with integrated AI features (AI Chat, AI Review, AI Translate, AI Quick Actions) that keep human review control over AI-generated edits.

  Poland

• LanguageToolEU-hosted, non-EU parent

  German open-source grammar, spelling, and style checker supporting 30+ languages

  Germany · owner in United States

• Notepad++Self-hosted / open source

  Free open-source text and source code editor for Windows with syntax highlighting and plugins.

  France

• Sapling AISelf-hosted / open source

  US open-source language-model toolkit for grammar, autocomplete and AI detection.

  United States

View all open-source Writing Assistance & Grammar vendors