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Bolt.diy

Prompt, run, edit, and deploy full-stack Node.js applications from a browser tab: Bolt.diy is the official open-source version of Bolt.new's AI coding agent. Its foundation is StackBlitz's WebContainer technology - a sandboxed in-browser Node.js environment where the AI controls the whole stack: filesystem, npm, dev servers, terminal, and browser console. That means the agent does not just generate code; it installs dependencies, runs Vite or Next.js, reads errors, and fixes them. The defining difference from Bolt.new is model choice per prompt: 19+ providers including OpenAI, Anthropic, Gemini, DeepSeek, Groq, Mistral, Amazon Bedrock, and local models via Ollama or LMStudio, extensible through the Vercel AI SDK. Development ergonomics include live preview, a diff view of AI changes, codebase search, file locking to prevent generation conflicts, 15+ starter templates (React, Vue, Next.js, Astro, Svelte, Expo), and MCP support for external tools. Projects integrate with Git and Supabase, and deploy in one click to Vercel, Netlify, or GitHub Pages.

Bolt.diy

Benefits

  • Any Model, Any Prompt
  • Bolt.new locks you into its bundled model and token plans. Bolt.diy switches between OpenAI, Claude, Gemini, DeepSeek, or a free local Ollama model per prompt.
  • Pay Raw API Rates
  • Bring your own keys and pay provider token prices directly instead of marked-up platform credits - or run local models at zero marginal cost.
  • An Agent That Actually Runs Code
  • WebContainer gives the AI a real Node.js environment, so it installs packages, starts servers, reads its own errors, and iterates - not just code snippets in chat.
  • Prototype to Production in One Tool
  • Idea to deployed URL without leaving the browser: templates for a fast start, Git for versioning, and one-click deploys to Vercel, Netlify, or GitHub Pages.

Features

  • 19+ LLM Providers
  • OpenAI, Anthropic, Gemini, DeepSeek, Groq, Mistral, xAI, Amazon Bedrock, and local backends via Ollama and LMStudio, extensible through the Vercel AI SDK.
  • WebContainer Sandbox
  • A secure in-browser Node.js environment with full filesystem, npm, terminal, and dev-server control handed to the AI.
  • Live Preview and Diff View
  • Watch the app render in real time and review every AI-made change as a diff, with file locking to prevent conflicting edits.
  • 15+ Project Templates
  • Starters for React, Vue, Angular, Svelte, Next.js, Astro, Nuxt, Qwik, and Expo for React Native mobile apps.
  • Git and Supabase Integration
  • Clone and import repositories, version work on GitHub, and attach a Supabase database for backend queries.
  • One-Click Deployment
  • Ship straight from the chat to Vercel, Netlify, or GitHub Pages, with MCP support for extending the agent with external tools.