16 open-source AI Coding vendors.

Open-source software for AI Coding that you can self-host, with auditable source code — regardless of the developer's headquarters.

• AiderSelf-hosted / open source

  Open-source terminal AI pair-programming tool (Apache 2.0) by creator Paul Gauthier; no controlling company, bring-your-own-model.

  United States

• ClineSelf-hosted / open source

  Open-source VS Code AI coding agent (Apache 2.0, ~70k GitHub stars) by Cline Bot Inc. (San Francisco) with step-by-step Plan/Act interaction.

  United States

• GooseSelf-hosted / open source

  Open-source AI developer agent (Apache 2.0) originally by Block Inc., donated to the Linux Foundation's Agentic AI Foundation in late 2025.

  United States

• Kilo CodeSelf-hosted / open source

  Open-source VS Code/JetBrains extension (a fork of Roo Code), owned by America's Anaconda since July 2026.

  United States

• MeltyNon-EU vendor

  Open-source AI-native code editor (MIT) by Melty Labs (Y Combinator, San Francisco) that tracks commits and compiler errors in real time.

  United States

• Mistral CodeEU sovereign

  French AI code assistant with IDE plugins for VS Code and JetBrains, powered by Codestral

  France

• Mistral Vibe CLISelf-hosted / open source

  Open-source terminal coding agent by Mistral, powered by Devstral, alternative to Claude Code

  France

• OmnigentNon-EU vendor

  Open-source meta-harness providing a shared orchestration layer over agent environments such as Claude Code, Codex and Cursor, with policy enforcement and sandboxing.

  United States

• OpenCodeSelf-hosted / open source

  Open-source terminal AI coding agent (MIT) by Anomaly Innovations, supports 75+ LLM providers.

  United States

• OpenHands (voorheen OpenDevin)Non-EU vendor

  Open-source autonomous AI software engineer capable of executing complex engineering tasks, developed by All Hands AI.

  United States

• Openwork (LangChain)Non-EU vendor

  Open-source desktop harness from LangChain letting agents edit local files and run shell commands after explicit human approval.

  United States

• PearAINon-EU vendor

  Open-source, AI-first code editor (MIT, a fork of VS Code/Continue) by PearAI Inc. (Y Combinator, San Francisco), positioned as a transparent alternative to Cursor.

  United States

• Refact.aiSelf-hosted / open source

  Self-hosted, open-source AI coding assistant with encryption-at-rest and no server-side data collection; UK-registered.

  United Kingdom

• TabbySelf-hosted / open source

  Self-hosted open-source AI coding server by TabbyML (San Francisco); no code ever leaves your own network.

  United States

• Wingman-AISelf-hosted / open source

  Open-source VS Code extension for codebase indexing and real-time context injection, individually maintained by Russell Canfield (Virginia, US); no company.

  United States

• ZedNon-EU vendor

  GPU-accelerated, open-source code editor by Zed Industries (Denver) with native AI functionality and MCP integrations.

  United States