Self-hosted / open sourceAI CodingHeadquarters: US

bolt.diy: sovereignty score and 7 European alternatives

bolt.diy is the open-source (MIT) community version of Bolt.new, an AI app builder in which you describe a web application in plain language and a language model generates it. You run it yourself, through a local development server, Docker or an Electron desktop app, and connect API keys from the model providers of your choice. It is an alternative to hosted AI app builders such as Bolt.new itself, Lovable or v0.

The code lives under the stackblitz-labs GitHub organisation of StackBlitz, Inc., based in San Francisco (US). The README describes the project as a community effort and states that ongoing work consists of bug fixes, dependency updates and reliability fixes, with no new features planned. Because you host it yourself, there is no vendor cloud: your project data stays on your own system, and your prompts go to whichever model provider you configure. For a European organisation, that choice therefore determines where code and prompts end up. The underlying WebContainers API carries separate commercial licensing terms for enterprise use.

See the 7 European alternatives ↓Assess your stack with bolt.diy pre-selected

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Sovereignty score

69 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-210
Headquartered in the US: CLOUD Act and FISA 702
Data residency SOV-3100
No hosting in Europe (US)
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-665
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	US (US)Verified by hand
EU adequacy decision	Only for companies individually certified under the EU-US Data Privacy FrameworkVerified by hand
Sovereignty model	Open-source, distributedVerified by hand
Data hosting	USVerified by hand
Open-source	YesVerified by hand
GDPR-compliant	NoVendor-stated
Category	AI Coding
Type	Product
Website	github.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to bolt.diy

The European alternatives to bolt.diy 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

7 European AI Coding 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 bolt.diy

bolt.diy 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.

bolt.diy 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.

bolt.diy 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 bolt.diy 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 bolt.diy?

It depends on your use case. Strong EU alternatives to bolt.diy include Eclipse Theia, JetBrains AI Assistant and JetBrains Junie. On this page you can compare 7 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to bolt.diy?

Yes. Open-source EU alternatives to bolt.diy include Eclipse Theia, Mistral Code, Mistral Vibe CLI and SHAI (OVHcloud). These keep your data fully under your own control and let you self-host if you want to.

Is bolt.diy GDPR-compliant and where is the data hosted?

bolt.diy is headquartered in US and hosts data in US. Its GDPR compliance is limited or unclear. 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 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 AI Coding

AI Coding: AI-powered code assistants — code completion, terminal agents, AI-native IDEs. 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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