EU sovereignBrowserHeadquarters: NL

Polypane: sovereignty score and 8 European alternatives

Polypane is a desktop browser for web developers, made by the Dutch company Polypane B.V. It shows several screen sizes, devices and user preferences side by side in one overview, so a website can be checked on different screens while it is being built. The application also includes tools for accessibility checks, HTML and CSS inspection and link previews for social media. It is an installable application and is not open source.

The legal entity behind Polypane is Firstversionist B.V., trading as Polypane B.V., with its seat in the Netherlands. According to its privacy policy, services and data are hosted on DigitalOcean and Amazon Web Services in European data centres, and payments are processed by external providers. Because both hosting providers are US companies, US law such as the CLOUD Act can still apply to them even when the data stays in Europe. The company refers to the GDPR and to standard contractual clauses. For a European organisation, Dutch origin and EU hosting are the main facts, and the chain of hosting providers still matters.

See the 8 European alternatives ↓Assess your stack with Polypane pre-selected

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Sovereignty score

71 / 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-360
Key management with a European vendor
Freedom from lock-in SOV-640
Closed source: switching requires data migration
Source & runtime sovereignty SOV-4 · SOV-655
Closed source, runtime with the vendor

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 12, 2026

Headquarters	NL (EU)Verified by hand
Sovereignty model	Vendor-hosted (EU)Verified by hand
Data hosting	EUVerified by hand
Open-source	NoVerified by hand
GDPR-compliant	YesVendor-stated
Category	Browser
Type	Product
Website	polypane.app ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Polypane

The European alternatives to Polypane come from our knowledge base of over 8,000 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

20 European Browser 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 Polypane

Polypane is headquartered in NL 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 Polypane scores best on data residency.

Polypane is closed source and hosted by the vendor. The encryption keys and the runtime sit with the vendor and switching requires data migration. Ask about bring-your-own-key, export options and open standards.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Polypane 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 Polypane?

It depends on your use case. Strong EU alternatives to Polypane include Ecosia Browser, Falkon and Iridium Browser. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Polypane?

Yes. Open-source EU alternatives to Polypane include Falkon, Iridium Browser, Konqueror, LibreWolf, Midori, Mullvad Browser and Nyxt. These keep your data fully under your own control and let you self-host if you want to.

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

Polypane is headquartered in NL (EU) and hosts data in EU. That makes Polypane 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 12, 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

Cyber Resilience Act

Public signals that relate to the EU Cyber Resilience Act. They do not count towards the score. A missing line means "not found publicly".

security.txt: polypane.app/.well-known/security.txt

For products in scope of the CRA, CE marking is required from 11 December 2027; this cannot be checked yet.

Checked on October 12, 2026. What is the Cyber Resilience Act?

Digital sovereignty in Browser

Browser: Web browser — browsing, privacy, extensions, sync. 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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