Non-EU vendorBrowserHeadquarters: US

Dia: sovereignty score and 8 European alternatives

Dia is an AI browser from The Browser Company for macOS and Windows. The vendor markets it as more than a browser, with AI features that can connect to the tools a user works with. It is installed on the user's computer. Its optional Sync feature is described by the vendor as end-to-end encrypted, so synced content is not stored in readable form on the company's servers.

The Browser Company of New York was acquired by Atlassian, which announced the deal in September 2025; the company was to continue operating as a separate business. Dia's privacy policy states that data is hosted and operated in the United States and offers no EU data-residency option. The policy names EU and UK representatives for GDPR purposes and mentions a data processing agreement only for transfers to the US. Dia is proprietary software and not open source. A European organisation should weigh US hosting and US jurisdiction before using it for work-related browsing.

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

Mastodon LinkedIn Bluesky X Email

Sovereignty score

17 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-210
Headquartered in the US: CLOUD Act and FISA 702
Data residency SOV-30
No hosting in Europe (US)
Cryptographic key sovereignty SOV-320
Key management with a non-European vendor
Freedom from lock-in SOV-640
Closed source: switching requires data migration
Source & runtime sovereignty SOV-4 · SOV-615
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 11, 2026

Headquarters	US (US)Verified by hand
EU adequacy decision	Only for companies individually certified under the EU-US Data Privacy FrameworkVerified by hand
Sovereignty model	Vendor-hosted (non-EU)Verified by hand
Data hosting	USVerified by hand
Open-source	NoVerified by hand
GDPR-compliant	YesVendor-stated
Category	Browser
Type	Product
Website	diabrowser.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Dia

The European alternatives to Dia 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

18 European Browser vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

Is Dia one of many dependencies?

Score your whole stack in about three minutes. Free, no account needed.

Assess your stack →View a sample report (opens in a new tab)

Why digital sovereignty matters with Dia

Dia is headquartered in the United States. US vendors fall under the CLOUD Act and FISA 702: US authorities can compel access to data, even when that data sits in a European data centre. That is the core of the jurisdictional exposure in our model.

Dia hosts data outside the EU (US). Personal data therefore leaves the EU, which requires a transfer mechanism under the GDPR and pulls the data residency score down.

Dia 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 Dia 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 Dia?

It depends on your use case. Strong EU alternatives to Dia 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 Dia?

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

Dia is headquartered in US and hosts data in US. 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.

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 11, 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".

We found none of these signals on the vendor's own site when we checked.

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

Checked on October 11, 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.

Also in this category

See all →

Open in the alternatives dashboard Missing a vendor? Submit it Are you this vendor? You can also become a sponsor on the Browser page — with no effect on your score