Best Open Source AI Coding Agents in 2026
AI-powered coding assistants and autonomous agents that help developers write, review, and debug code.
The most popular pick this year is OpenCode with 158,891 GitHub stars, but all 3 options below are worth considering depending on your needs.
3 open source ai coding agents — ranked by GitHub stars. Browse all
OpenCode
OpenCode is an open source agent that helps you write code in your terminal, IDE, or desktop.
Claude Code
Warp
An agentic development environment built on a modern Rust terminal emulator with AI-powered coding features.
macOS Terminal
Modo
Open-source AI IDE that plans before it codes, using spec-driven development with requirements, design, and task steps.
CursorHow we rank these tools
Tools are ranked by GitHub stars as a proxy for community adoption and trust. Stars reflect how many developers found a project valuable enough to bookmark — a reasonable signal for quality in the open source world. We only list tools that are actively maintained and open source.
Looking for tools you can run yourself? Browse self-hosted ai coding agents →