#66th of 7 in App builder starters
fragments
Open-source Claude Artifacts alternative that runs AI-generated apps in sandboxes
- Stars
- 6.4k
- License
- Apache-2.0
- Last commit
- Oct 2026
- Language
- TypeScript
Overview
Next.js 14 app that takes a chat prompt, has an LLM generate code, and runs it in an E2B cloud sandbox with a live preview. Built-in stacks are Python interpreter, Next.js, Vue.js, Streamlit and Gradio, and more can be added as E2B sandbox templates. It supports OpenAI, Anthropic, Google AI, Mistral, Groq, Fireworks, Together AI and Ollama.
Who it is for: Developers building a self-hosted Artifacts or v0-style app generator
Strengths
- Adds stacks via an E2B Dockerfile plus an entry in lib/templates.json
- Eight LLM providers including Ollama; custom models and providers are config edits
- Generated code runs in E2B sandboxes, with npm and pip packages installable
- Optional Morph Apply model for faster code edits
Weaknesses
- Requires an E2B API key; sandbox execution is not self-hosted in this setup
- No Dockerfile or compose file; README documents only npm run dev and build
- No tagged releases
- README lists Next.js 14, which may lag current Next.js
What it needs
- TypeScript, OpenAI, Anthropic, Google AI, Google Vertex
- Needs E2B API key, LLM provider API key, Supabase (optional, auth), Vercel/Upstash KV (optional), PostHog (optional), Morph API key (optional)
- env example file
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