Bolt.diy (oTToDev)
Bolt.diy (formerly oTToDev) is the official community-driven, 100% open-source fork of Bolt.new that lets developers build, run, and deploy full-stack web apps in the browser using any local or free LLM API.
Yes, Bolt.diy is the #1 zero-cost escape from Bolt.new token exhaustion. By connecting free Google Gemini 2.5 Flash, Groq, OpenRouter free models, or local Ollama models, you get unlimited full-stack WebContainer app generation for $0.
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Quick Facts: Pricing, Quotas & Architecture
Hands-On Testing: What We Liked & What to Know
- Connect 19+ LLM providers including Ollama, LM Studio, Google Gemini, Groq, DeepSeek, Anthropic, and OpenRouter
- Full browser-based WebContainers environment executing Node.js, Vite, Next.js, and npm packages locally
- One-click project export to ZIP, direct GitHub repository push, and instant Netlify/Vercel deployment
- Zero subscription paywalls, zero daily token caps, and complete local code privacy
- Requires Node.js or Docker installed locally for self-hosting.
- Output code quality depends on the LLM provider you connect (DeepSeek V3, Claude, or Gemini 2.5 Pro recommended).
Hands-On Testing Notes: Is Bolt.diy (oTToDev) Actually Free?
We tested Bolt.diy (oTToDev) (stackblitz-labs.github.io) directly in our 2026 verification lab to confirm whether its free access tier delivers genuine production utility for developers, creators, and teams without hidden paywalls.
Verified Free Allowance: 100% Free & Open-Source (MIT) — Unlimited local or BYOK generations using free Gemini, Groq, or Ollama APIs. Commercial / Paid tier comparison: $0 Forever (Self-Hosted / Local Node.js or Docker); only pay if you use commercial paid LLM APIs.