8 open-source Cloud PaaS vendors.

Open-source software for Cloud PaaS that you can self-host, with auditable source code — regardless of the developer's headquarters.

• 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

• ServerpodEU sovereign

  Swedish open-source backend-framework and PaaS for Flutter/Dart

  Sweden

• Supabase EUNon-EU vendor

  Open-source Firebase alternative with EU data hosting available

  Singapore