Self-hosted / open sourceIoT & EmbeddedHeadquarters: DE

Slint: sovereignty score and 8 European alternatives

Slint is a declarative GUI toolkit for building user interfaces in Rust, C++, JavaScript and Python. Interfaces are described in a markup language similar to HTML and CSS and compiled into the application, and the toolkit targets embedded, desktop, mobile and web devices. It includes a language server, a VS Code extension and a live-preview tool. Slint is a library that developers build into their own software, not a hosted service.

The toolkit is developed by SixtyFPS GmbH, whose imprint gives an address in Hohen Neuendorf near Berlin. Slint is offered under three options: the GPL for open-source applications, a royalty-free permissive licence for other development, and a commercial licence that includes support. The source code is available on GitHub. For a European organisation the licensing terms matter most, since a library that runs inside the organisation's own software involves little data hosting.

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

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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 12, 2026

Headquarters	DE (EU)Verified by hand
Sovereignty model	Open-source, distributedVerified by hand
Data hosting	EUVerified by hand
Open-source	YesVerified by hand
GDPR-compliant	NoVendor-stated
Category	IoT & Embedded
Type	Product
Website	slint.dev ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Slint

The European alternatives to Slint 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

90 European IoT & Embedded 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 Slint

Slint is headquartered in DE 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 Slint scores best on data residency.

Slint 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 Slint 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 Slint?

It depends on your use case. Strong EU alternatives to Slint include 1NCE, Actility ThingPark and akenza. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Slint?

Our list of EU alternatives to Slint is mostly commercial options. Browse the category on the map for open-source choices.

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

Slint is headquartered in DE (EU) and hosts data in EU. It is also open-source, so you can self-host it. That makes Slint 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 IoT & Embedded

IoT & Embedded: Internet of Things platforms, embedded systems and industrial IoT solutions. 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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