EU sovereignForms & SurveysHeadquarters: FR

OpnForm: sovereignty score and 8 European alternatives

OpnForm is a form builder for forms, surveys and workflows, with no cap on submissions on the free plan. It offers a drag-and-drop builder, conversational or classic form styles, conditional logic, calculations, hidden fields and integrations with Slack, Google Sheets, Zapier and Stripe, among others. Webhooks and a REST API are available. You can use OpnForm as a managed cloud service or install it yourself, for example with Docker.

The core application is open source under the AGPL-3.0 licence; the Enterprise features are proprietary under a separate licence. According to its privacy policy, OpnForm is based in France (Neuilly-sur-Seine) and the developer operates the service as an individual. The vendor describes the cloud service as EU-hosted, but the privacy policy names no specific hosting location or processors. When self-hosting, you decide where the data is stored. Organisations that use the cloud service should have the hosting location confirmed in writing.

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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 July 2, 2026

Headquarters	FR (EU)Verified by hand
Sovereignty model	Vendor-hosted (EU)Verified by hand
Data hosting	EUVerified by hand
Open-source	YesVerified by hand
GDPR-compliant	YesVendor-stated
Compliance documents	1 published, see belowVendor-stated
Hosting signal	AMAZON-02 - Amazon.com, Inc., US (US)Technically measured
Category	Forms & Surveys
Type	Product
Website	opnform.com ↗

The hosting signal shows the network that serves the vendor's website, often a CDN, and not necessarily where the service or your data is hosted. How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to OpnForm

The European alternatives to OpnForm come from our knowledge base of over 6,800 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

41 European Forms & Surveys 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 OpnForm

OpnForm 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 OpnForm scores best on data residency.

OpnForm 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 OpnForm 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 OpnForm?

It depends on your use case. Strong EU alternatives to OpnForm include 123FormBuilder, AidaForm and Askia. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to OpnForm?

Yes. Open-source EU alternatives to OpnForm include CryptPad Forms. These keep your data fully under your own control and let you self-host if you want to.

Is OpnForm GDPR-compliant and where is the data hosted?

OpnForm is headquartered in FR (EU) and hosts data in EU. It is also open-source, so you can self-host it. That makes OpnForm 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 July 2, 2026.

Sources

This record was checked via the vendor's website and legal notice during the full audit of June and July 2026. Source links have been recorded per record since 20 September 2026.

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".

Security page / trust center: opnform.com/privacy-policy

Provenance of the links above:Vendor-stated

Links checked on September 21, 2026.

Digital sovereignty in Forms & Surveys

Forms & Surveys: Online forms, surveys and feedback tools. 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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