Freebuff
Free AI coding agent with multiple frontier models — write, edit & run code
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Free AI coding agent with multiple frontier models — write, edit & run code
One API key for Claude & OpenAI — plug into Claude Code or any client
AI app-building workspace for coding, deploying, and collaboration
AI app builder for creating full-stack applications instantly
Agentic AI code editor with spec-driven development and vibe coding
Optimization solver for complex engineering and business problems
Collaborate in Jupyter notebooks for data and analytics work
Emulate AWS cloud services locally on your machine
Electronics platform for building smart hardware and IoT devices
Build and test IoT projects with open-source hardware boards
Access blockchain data and insights via public APIs
Interactive design and prototyping platform with code export