EU Sovereignty Score
EU sovereignMessagingHeadquarters: NL

TalkJS: sovereignty score and 8 European alternatives

TalkJS is a chat API and SDK set that lets developers add messaging to apps and websites. Its ready-made chat interface supports one-to-one and group conversations, and optional features include file transfers, email and SMS notifications and real-time translation. SDKs exist for JavaScript, React, Vue, Flutter, iOS and Android. As a hosted service, it is operated by the vendor. It is an alternative to US chat APIs such as Sendbird and Stream Chat.

TalkJS is operated by Klets B.V., trading as TalkJS, which is registered in Eindhoven in the Netherlands and governed by Dutch law. The company states that by default all user and message data is stored on EU servers operated by DigitalOcean. Optional email, SMS and translation features use US providers such as Postmark, Twilio, Amazon Web Services and Google Cloud, so a European organisation should check which of them it enables. TalkJS states that it is GDPR-compliant, offers a data processing addendum and holds ISO 27001 certification. The product is not open source and cannot be self-hosted.

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Sovereignty score
59 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-2100
    Headquartered in the EU: European law applies
  • Data residency SOV-350
    Hosting inside and outside Europe (EU, US)
  • 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-645
    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
EU, USVerified by hand
Open-source
NoVerified by hand
GDPR-compliant
YesVendor-stated
Category
Messaging
Type
Product
Website
talkjs.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to TalkJS

The European alternatives to TalkJS come from our knowledge base of over 7,800 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

29 European Messaging 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 TalkJS

TalkJS 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.

TalkJS hosts data in EU, US. Exactly what stays within the EU — and what does not — is defined by the vendor's data processing agreement and sub-processor list, not by a setting you control yourself; check those documents for the precise scope, including backups, logs and support access.

TalkJS 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 TalkJS 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 TalkJS?

It depends on your use case. Strong EU alternatives to TalkJS include 360dialog, Balsio and Berty. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to TalkJS?

Yes. Open-source EU alternatives to TalkJS include Berty, Conversations (XMPP), Delta Chat and Dino. These keep your data fully under your own control and let you self-host if you want to.

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

TalkJS is headquartered in NL (EU) and hosts data in EU, US. That makes TalkJS 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

Digital sovereignty in Messaging

Messaging: Personal messaging — chat, group conversations, media sharing. 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

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8 European alternatives to TalkJS — GDPR-compliant & EU-hosted · EU Sovereignty Score