Open-source AI coding agents and tools

Open-source coding agents for the terminal, the editor and the cloud, plus the tools that route, orchestrate and review their work.

27 open-source projects, checked against GitHub on 1 November 2026.

All 27 AI coding agents projects

Showing all 27, ordered by health score.

  1. 93 Active
    CC Switch

    A cross-platform desktop All-in-One assistant for Claude Code, Codex, OpenCode,DeepSeek Harness and more. Only official website: ccswitch.io

    MIT
    Setup
    Builds
    Stars
    151k
    Release
    31 October 2026
  2. 93 Active
    PR-Agent

    PR Agent: The Original Open-Source PR Reviewer. This project is not the Qodo free tier.

    MIT relicensed 2026
    Setup
    2 of 5
    Stars
    13.9k
    Release
    25 October 2026
  3. 92 Active
    Zed

    Code at the speed of thought – Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.

    GPL-3.0 CLA
    Setup
    2 of 5
    Stars
    92.5k
    Release
    28 October 2026
  4. 85 Active
    Goose

    an open source, extensible AI agent that goes beyond code suggestions - install, execute, edit, and test with any LLM

    Apache-2.0
    Setup
    Docker
    Stars
    56.1k
    Release
    28 October 2026
  5. 83 Active
    OpenHands

    OpenHands: AI-Driven Development

    MIT
    Setup
    1 of 5
    Stars
    92.4k
    Release
    27 October 2026
  6. 82 Active
    Codewhale

    Open-source agent for the terminal written in Rust. Use any provider or model. Issues & PRs always welcome

    MIT
    Setup
    1 of 5
    Stars
    41.2k
    Release
    24 October 2026
  7. 82 Active
    Claude Code Router

    One local control plane for every AI agent: route across models, fuse new capabilities, orchestrate tools, and stay fully in control.

    MIT
    Setup
    1 of 5
    Stars
    37.9k
    Release
    9 October 2026
  8. 81 Active
    Open Interpreter

    A coding agent for open models like Kimi K3 and GLM 5.3

    Apache-2.0 CLA
    Setup
    Docker
    Stars
    68.8k
    Release
    31 October 2026
  9. 80 Active
    Qwen Code

    An open-source AI coding agent that lives in your terminal.

    Apache-2.0
    Setup
    Docker
    Stars
    28.9k
    Release
    1 November 2026
  10. 78 Active
    OpenCode

    The open source coding agent.

    MIT
    Setup
    Docker
    Stars
    224k
    Release
    28 October 2026
  11. 78 Active
    Cline

    Autonomous coding agent as an SDK, IDE extension, or CLI assistant.

    Apache-2.0
    Setup
    Builds
    Stars
    71.1k
    Release
    26 October 2026
  12. 77 Active
    Orca

    Orca is the place for working with a fleet of agents (e.g. Grok Bot, Claude Code). Run any coding agent with your own subscription. Available on desktop, mobile and…

    MIT
    Setup
    Docker
    Stars
    112k
    Release
    30 October 2026
  13. 76 Active
    Gemini CLI

    An open-source AI agent that brings the power of Gemini directly into your terminal.

    Apache-2.0 CLA
    Setup
    Docker
    Stars
    109k
    Release
    27 October 2026
  14. 76 Active
    Kilo Code

    Kilo is the all-in-one agentic engineering platform. Build, ship, and iterate faster with the most popular open source coding agent.

    MIT
    Setup
    Docker
    Stars
    27.8k
    Release
    26 October 2026
  15. 72 Active
    Warp

    Warp is an agentic development environment, born out of the terminal.

    AGPL-3.0
    Setup
    Docker
    Stars
    65.8k
    Release
    3 June 2026
  16. 72 Active
    Repomix

    Repomix is a powerful tool that packs your entire repository into a single, AI-friendly file. Perfect for when you need to feed your codebase to Large Language Models…

    MIT
    Setup
    3 of 5
    Stars
    29.1k
    Release
    21 September 2026
  17. 72 Active
    ego lite

    The fastest browser for AI agents to run browser automation, built for sharing your logged-in browser state with your AI agents, like Codex or Claude Code, without…

    MIT app not in repo
    Setup
    From source
    Stars
    21.1k
    Release
    16 October 2026
  18. 71 Active
    Codex CLI

    Lightweight coding agent that runs in your terminal

    Apache-2.0 CLA
    Setup
    Docker
    Stars
    133k
    Release
    29 October 2026
  19. 69 Active
    Paperclip

    The open-source app everyone uses to manage agents at work

    MIT
    Setup
    2 of 5
    Stars
    110k
    Release
    24 October 2026
  20. 68 Active
    Archon

    The first open-source harness builder for AI coding. Make AI coding deterministic and repeatable.

    MIT relicensed 2026
    Setup
    1 of 5
    Stars
    23.8k
    Release
    29 October 2026
  21. 64 Active
    Browser Use

    Open-source Python library for AI browser agents, plus Browser Use Cloud: stealth browsers and a hosted agent API.

    MIT
    Setup
    Docker
    Stars
    120k
    Release
    26 October 2026
  22. 64 Active
    Crush

    Glamourous agentic coding for all

    Functional Source License source-availableCLA
    Setup
    Builds
    Stars
    28.9k
    Release
    29 October 2026
  23. 55 Active
    Happy

    Orchestrate Claude, Codex and Grok in one app. Open-source (MIT), reuses the subscriptions you already pay for.

    MIT
    Setup
    Docker
    Stars
    24.4k
    Release
    22 September 2026
  24. 24 Slowing
    Tabby

    Self-hosted AI coding assistant

    Apache-2.0 paid features in repo
    Setup
    3 of 5
    Stars
    33.9k
    Release
    25 January 2026
  25. 18 Active
    Continue

    open-source coding agent

    Apache-2.0 CLA
    Setup
    Docker
    Stars
    36.4k
    Release
    19 June 2026
  26. 16 Slowing
    Aider

    aider is AI pair programming in your terminal

    Apache-2.0 CLA
    Setup
    Docker
    Stars
    49.9k
    Release
    9 August 2025
  27. 6 Slowing
    SWE-agent

    SWE-agent takes a GitHub issue and tries to automatically fix it, using your LM of choice. It can also be employed for offensive cybersecurity or competitive coding…

    MIT
    Setup
    Docker
    Stars
    20.7k
    Release
    22 May 2025

Our picks by use case

  • Terminal agents that work with any model

    OpenCode, Goose and Codewhale edit code and run commands in your terminal with the model provider you choose.

  • Agents inside your editor

    Cline and Kilo Code work in VS Code and JetBrains IDEs and show each change before it lands; Zed is a fast editor with agents built in.

  • Agents from model makers

    Codex CLI from OpenAI and Qwen Code from Alibaba's Qwen team are tuned for their own models, and both are Apache-licensed.

  • Many agents at once

    Orca runs several agents side by side in separate Git worktrees, and OpenHands gives a team a self-hosted control center for agents and automations.

  • Managing providers and keys

    CC Switch switches API providers and MCP settings across agents, and Claude Code Router routes each request to the model you pick.

  • Repeatable agent workflows

    Archon runs agents through YAML workflows that take an issue to a merged pull request the same way every time.

    • ArchonMITrelicensed 2026health 68

  • Pull request review

    PR-Agent describes, reviews and suggests improvements on pull requests in GitHub, GitLab, Bitbucket and Azure DevOps.

  • Context and browsing

    Repomix packs a repository into one file for chat models, and Browser Use lets agents operate websites.

How to choose an AI coding agent

Coding agents read your repository, edit files and run commands until a task is done. They differ mainly in where they run: in a terminal next to your code, inside an editor, or on servers as a team of agents. Around them a second group of tools manages model providers, runs several agents in parallel or reviews the pull requests they open.

Terminal, editor or server

Terminal agents suit developers who already work in a shell and want scripts and CI to use the same tool. Editor agents show each diff where you read code. Server-side agents such as OpenHands run in containers, so long tasks keep going while your laptop sleeps.

Model freedom

Vendor agents get the most out of their own models, while neutral agents let you switch providers, use local models, or pair cheap and strong models per task. If you already pay for ChatGPT or Claude, check which agents can use that subscription instead of separate API keys.

Control and review

Agents differ in how much they do before asking. Look for a planning or read-only mode, approval before commands run, and a record of what changed: OpenCode has a read-only plan agent, Cline asks before each step, and Codewhale lists every file, command and tool call.

License and maintenance

Most tools here use permissive licenses, but Crush uses the Functional Source License, which is not OSI open source. The field moves fast: Aider, Tabby and SWE-agent have nearly stopped, and Continue's repository is now read-only, so check the health score before you settle on one.

Costs

The agents are free, but tokens are not, and long autonomous tasks use a lot of them. Set a budget per task, use cheaper models for routine edits, and watch usage logs, which a local gateway such as Claude Code Router can show for every request.

Drafted with AI from the projects’ READMEs and our data, then checked against that data on 30 October 2026. Report a correction

Which of these are really open source?

Fully open source (24)OSI-approved license, no paid parts in the repository
OpenCode, CC Switch, Codex CLI, Browser Use, Orca, Paperclip, Gemini CLI, Zed, OpenHands, Cline, Open Interpreter, Warp, Goose, Aider, Codewhale, Claude Code Router, Continue, Repomix, Qwen Code, Kilo Code, Happy, Archon, SWE-agent, PR-Agent
Open source with paid parts (1)OSI license, but some features are under commercial terms
Tabby
Not OSI open source (1)Code is public, use is restricted
Crush (Functional Source License)
License changesNewest first
PR-Agent: Apache-2.0 → MIT, 2026; Archon: DYNAMOUS COMMUNITY - PROPRIETARY license → MIT, 2026

Read automatically from each repository’s license files every day. How we read licenses

Questions about open-source AI coding agents

What are the most popular open-source AI coding agents projects?

By GitHub stars: OpenCode (224k), CC Switch (151k), Codex CLI (133k). By our health score, the most actively maintained are CC Switch (93), PR-Agent (93), Zed (92).

Which AI coding agents projects are fully open source?

24 of the 27 use an OSI-approved license with no paid parts in the repository, including OpenCode, CC Switch, Codex CLI.

Which are the easiest to self-host?

Judged by the services in their compose files, Paperclip, Zed, OpenHands, Codewhale need the least setup.

Which projects have changed their license?

Archon (to MIT in 2026), PR-Agent (to MIT in 2026). Each project page links to the commit that made the change.

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