bolt.diy
Open-source version of Bolt.new that builds and runs full-stack web apps in the browser with any LLM.
About
Formerly known as oTToDev, bolt.diy is the official open-source counterpart to StackBlitz's Bolt.new: an AI development environment where you prompt, run, edit, and deploy full-stack web applications entirely in the browser. Code executes inside WebContainers, giving the agent an integrated terminal, live preview, and Node.js runtime without local toolchain setup, and finished projects can be pushed to GitHub or deployed to Netlify and Vercel. Its defining feature is provider freedom, with more than 19 supported LLM backends including OpenAI, Anthropic, Gemini, Groq, DeepSeek, Mistral, OpenRouter, Amazon Bedrock, and local models through Ollama or LM Studio, all configurable from the UI. Extras include file locking, diff views, Git integration, and an Electron desktop build alongside pnpm and Docker installs. The code is MIT licensed with about 19,700 GitHub stars and community-driven maintenance under StackBlitz Labs; note that the underlying WebContainers API requires a paid license for production use in commercial, for-profit settings.
Should you use bolt.diy?
Pick it when
Pick bolt.diy when you want to prompt a full-stack web app into existence and watch it run in a browser preview without setting up a local toolchain, while choosing among 19-plus model providers, including local ones through Ollama or LM Studio.
Look elsewhere when
Skip it for commercial for-profit production use unless you budget for a WebContainers license, and for work on an existing repo outside the browser sandbox, where Cline or Aider fit better. Dyad offers a similar chat-to-app flow on local files.
Alternatives to bolt.diy
- Dyad
Same chat-to-app workflow as a desktop app that edits a normal local codebase you can open in any editor, though its desktop builds target Windows and macOS.
- Screenshot to Code
Narrower: turns a screenshot or mockup into front-end code, a faster start when you already have a design, but it does not run or deploy a full-stack app.
- Cline
Better for extending an existing repository inside VS Code or JetBrains with approval on each step, but it runs on your local toolchain rather than in-browser WebContainers.
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Details
- Category
- AI Code Assistants
- Price
- Free
- Platform
- Local/Desktop
- Difficulty
- Easy (2/5)
- License
- MIT
- Added
- Jul 29, 2026