Category: Captcha & Bot Detection
8 European alternatives to Swetrix CAPTCHA — GDPR-compliant & EU-hosted.
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.
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Facts
- Headquarters
- GB (OTHER)
- EU adequacy decision
- Yes — found adequate by the European Commission
- Sovereignty model
- Vendor-hosted (non-EU)
- Category
- Captcha & Bot Detection
- Type
- Product
- GDPR-compliant
- Yes
- Open-source
- Yes
- Data hosting
- EU
Sources
Public sources used in the latest check of this record.
Compliance evidence
The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".
No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction
Sovereignty profile of Swetrix CAPTCHA
How this vendor scores on the five dimensions of the Digital Sovereignty Heatmap: 0 is sovereign, 100 is high exposure. These are the same scores the assessment uses.
| Jurisdictional exposure (JES) | Headquartered outside the EU (GB) | 50 |
|---|---|---|
| Data residency (DRS) | EU-only hosting | 0 |
| Cryptographic key sovereignty (CKS) | Self-hostable: encryption keys under your own control | 10 |
| Platform lock-in (PLS) | Open source: low switching costs | 20 |
| Source & runtime sovereignty (SRS) | Source code auditable, forkable and self-hostable | 25 |
| Average | 21 |
Why digital sovereignty matters with Swetrix CAPTCHA
Swetrix CAPTCHA is headquartered in GB, outside the EU. Contracts and data therefore also fall under non-European law. The GDPR applies through contractual terms, but in a conflict with local legislation you have less certainty than with a European vendor.
Data is hosted exclusively in the EU, so Swetrix CAPTCHA scores best on data residency.
Swetrix CAPTCHA is open source. You can audit the source code, self-host the software and keep the encryption keys under your own control. Switching is easier because data and software are not tied to a single party.
What this means for your organisation depends on your whole stack and context. The free assessment weighs Swetrix CAPTCHA together with your other vendors and gives a total score, a heatmap and the main risk drivers.
Top EU-based & GDPR-compliant alternatives to Swetrix CAPTCHA
The European alternatives to Swetrix CAPTCHA come from our knowledge base of over 3,600 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.
- ALTCHA Sentinel↗
Self-hostable enterprise backend on top of the open-source ALTCHA, adding machine-learning classification, fraud detection and rate-limiting within your own Docker/Kubernetes clusters. Developed by BAU Software s.r.o. (Brno, Czech Republic) — the same maker as the base ALTCHA project.
CZ · commercial
- Captcha.eu↗
Proof-of-work based, cookieless CAPTCHA alternative operated by Captcha GmbH (Vienna, Austria, registered at Handelsgericht Wien), hosted entirely in Austria, with active customers including OBB and Bauer Media Group as of 2026.
AT · commercial
- CaptchaService (Stad München)↗
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.
DE · open-source
Frequently asked questions
What is the best European alternative to Swetrix CAPTCHA?
It depends on your use case. Strong EU alternatives to Swetrix CAPTCHA include ALTCHA, ALTCHA Sentinel and Atmosvere. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.
Are there open-source alternatives to Swetrix CAPTCHA?
Yes. Open-source EU alternatives to Swetrix CAPTCHA include ALTCHA and CaptchaService (Stad München). These keep your data fully under your own control and let you self-host if you want to.
Is Swetrix CAPTCHA GDPR-compliant and where is the data hosted?
Swetrix CAPTCHA is headquartered in GB (OTHER) and hosts data in EU. The vendor states it is GDPR-compliant, but the data falls under non-EU jurisdiction. For full EU data residency the EU alternatives on this page usually offer more certainty.
Digital sovereignty in Captcha & Bot Detection
Captcha & Bot Detection: Services that detect whether a real user or bot is visiting a website. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.
Also in this category
- Gregwar Captcha BundleEUFR
- mosparoEUCH
- Myra EU CAPTCHAEUDE
- Private CaptchaEUEE
- SilentShieldEUDE
- TrustcaptchaEUDE
How sovereign is your whole stack?
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