EU Sovereignty Score
Self-hosted / open sourceCaptcha & Bot DetectionHeadquarters: FR

Gregwar Captcha Bundle: sovereignty score and 8 European alternatives

Gregwar Captcha Bundle (gregwar/captcha-bundle) is a Symfony bundle that adds a captcha form type to the Symfony Form component. The image is generated with the standalone PHP library gregwar/captcha and by default is embedded directly in the HTML. Options include image size, code length, character set and distortion. The bundle is aimed at developers of Symfony applications and is installed through Composer. According to Packagist, the authors are Grégoire Passault and Jeremy Livingston.

The bundle is open source under the MIT licence and runs entirely inside your own application: the captcha is generated and checked on your own server, with no external API calls to a third party and no controlling company. There is therefore no foreign parent company and no data transfer to a vendor. Where the data resides is determined by your own hosting. It is a simple image captcha and does not provide behavioural analysis or advanced bot detection.

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Sovereignty score
94 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-2100
    Headquartered in the EU: European law applies
  • Data residency SOV-3100
    EU-only hosting
  • Cryptographic key sovereignty SOV-390
    Self-hostable: encryption keys under your own control
  • Freedom from lock-in SOV-680
    Open source: low switching costs
  • Source & runtime sovereignty SOV-4 · SOV-6100
    Source code auditable, forkable and self-hostable

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 4, 2026
HeadquartersFR (EU)Verified by hand
Sovereignty modelOpen-source, distributedVerified by hand
Data hostingEUVerified by hand
Open-sourceYesVerified by hand
GDPR-compliantYesVendor-stated
CategoryCaptcha & Bot Detection
TypeProduct
Websitegithub.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Gregwar Captcha Bundle

The European alternatives to Gregwar Captcha Bundle come from our knowledge base of over 6,200 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.

Score per alternative: 0 = high exposure, 100 = sovereign

15 European Captcha & Bot Detection vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

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Why digital sovereignty matters with Gregwar Captcha Bundle

Gregwar Captcha Bundle is headquartered in FR and therefore falls under European law: the GDPR, NIS2 and the Data Act. No foreign legislation can compel access to your data.

Data is hosted exclusively in the EU, so Gregwar Captcha Bundle scores best on data residency.

Gregwar Captcha Bundle 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 Gregwar Captcha Bundle together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to Gregwar Captcha Bundle?

It depends on your use case. Strong EU alternatives to Gregwar Captcha Bundle 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 Gregwar Captcha Bundle?

Yes. Open-source EU alternatives to Gregwar Captcha Bundle 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 Gregwar Captcha Bundle GDPR-compliant and where is the data hosted?

Gregwar Captcha Bundle is headquartered in FR (EU) and hosts data in EU. It is also open-source, so you can self-host it. That makes Gregwar Captcha Bundle an EU-sovereign choice in its own right; the EU alternatives on this page are comparable European tools.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 4, 2026.

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

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.

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8 European alternatives to Gregwar Captcha Bundle — GDPR-compliant & EU-hosted · EU Sovereignty Score