Open source · self-hostable
Best open-source coding agents
The open-source coding agents in the index — self-hostable, inspectable, and free to run. Ranked by real maintained adoption (GitHub stars and recent commit activity), never by sponsorship. Open source buys you control, privacy, and no vendor lock-in; the trade-off is that you host and maintain it yourself. Right now it's led by OpenCode (211k stars), with gemini-cli and Zed close behind. Rankings shift as projects gain stars and ship commits.
OpenCodeAgentOpen-source coding agent with a terminal interface and model-provider choice.Open sourceMITVerified · Active 211kGitHub starsgemini-cliAgentAn open-source AI agent that brings the power of Gemini directly into your terminal.Open sourceTypeScript · Apache-2.0Verified · Active 107kGitHub starsZedAgentA high-performance, multiplayer code editor with AI agent features, from the creators of Atom and Tree-sitter.Open sourceRust · GPL-3.0-or-laterVerified · Active 91kGitHub starsOpenHandsPlatformOpenHands Agent Canvas: a control center for coding agents and automation.Open sourceMITVerified · Active 89kGitHub starsClineAgentA coding agent with terminal, editor and programmatic interfaces.Open sourceApache-2.0Verified · Active 69kGitHub starsopeninterpreterAgentA lightweight coding agent for open models like Deepseek, Kimi, and QwenOpen sourceRust · Apache-2.0Verified · Active 68kGitHub starsAiderAgentPair-program with language models from your terminal and Git repository.Open sourceApache-2.0Verified 49kGitHub starsContinueAgentTerminal and editor coding assistant; upstream says maintenance has ended.Open sourceApache-2.0Verified · Active 36kGitHub starsQwen CodeAgentAn open-source AI coding agent for the terminal, editors and desktop, from the Qwen team.Open sourceTypeScript · Apache-2.0Verified · Active 28kGitHub starsKilo CodeAgentAn open-source AI coding agent for VS Code, JetBrains and the CLI, with 500+ models at provider cost.Open sourceTypeScript · MITVerified · Active 27kGitHub starsRoo CodeAgentEditor coding assistant with an archived upstream repository.Open sourceApache-2.0Verified 24kGitHub starsjcodeAgentCoding Agent HarnessOpen sourceRust · MITVerified · Active 20kGitHub stars
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PlandexAgentAn open-source terminal coding agent for large, multi-step tasks across many files.Open sourceGo · MITVerified 16kGitHub starsSkill_SeekersSDK / libraryConvert documentation websites, GitHub repositories, and PDFs into Claude AI skills with automatic conflict detectionOpen sourcePython · MITVerified · Active 15kGitHub starsopenevolveAgentOpen-source implementation of AlphaEvolveOpen sourcePython · Apache-2.0Verified · Active 7.5kGitHub starssembleSDK / libraryFast and Accurate Code Search for Agents. Uses ~98% fewer tokens than grep+readOpen sourcePython · MITVerified · Active 6.2kGitHub starsagents-cliAgentThe CLI and skills that turn any coding assistant into an expert at creating, evaluating, and deploying AI agents on Google Cloud.Open sourcePython · Apache-2.0Verified · Active 6.0kGitHub starsvibesdkPlatformAn open-source vibe coding platform that helps you build your own vibe-coding platform, built entirely on Cloudflare stackOpen sourceTypeScript · MITVerified · Active 5.4kGitHub starsMonkeyCodePlatformAI coding platform for teamsOpen sourceTypeScript · AGPL-3.0Verified · Active 4.8kGitHub starsgptmeAgentA provider-agnostic personal AI agent for the terminal, with shell, Python, web and vision tools.Open sourcePython · MITVerified · Active 4.4kGitHub starscommand-codeAgentCommand Code AIOpen sourceVerified 4.1kGitHub starsclaude_codex_bridgeAgentVisible multi-agent CLI workspace for mixing Codex, Claude, Gemini, Kimi, Qwen, Cursor, Copilot, Pi, OpenCode, and other AI coding agentsOpen sourcePythonVerified · Active 3.5kGitHub starsgrok-cliAgentAn open-source coding agent for the Grok APIOpen sourceTypeScript · MITVerified 3.5kGitHub starsteaql-agent-kitSDK / libraryDeterministic execution for non-deterministic AI.Open sourcePython · MITVerified · Active 2.8kGitHub starscocoindex-codeSDK / libraryA super light-weight embedded code search engine CLI (AST based) that just works - saves 70% token and improves speed for coding agent Star if you like it!Open sourcePython · Apache-2.0Verified · Active 2.7kGitHub starslittle-coderAgentA harness optimized to smaller LLMsOpen sourceTypeScript · Apache-2.0Verified · Active 2.6kGitHub starsORG2AgentOpen-source Cursor-style agent IDE — but built for reviewability and control. Built-in rust harness; supports 10+ CLIs.Open sourceTypeScript · AGPL-3.0Verified · Active 2.6kGitHub starsHolyClaudeAgentAI coding workstation: Claude Code + web UI + 8 AI CLIs + headless browser + 50+ toolsOpen sourceJavaScript · MITVerified · Active 2.6kGitHub starsopen-coworkAgentOpen-source AI agent desktop app for Windows & macOS. One-click install Claude Code, MCP tools, and Skills — with sandbox isolation, multi-model support, and Feishu/Slack integration.Open sourceTypeScript · MITVerified · Active 2.2kGitHub starsCoreCoderAgentMinimal AI coding agent (~1,000 lines of Python) inspired by Claude Code. Works with any LLM. Think NanoGPT for coding agents. Formerly NanoCoder.Open sourcePython · MITVerified · Active 1.8kGitHub starszerostackAgentLightweight coding agent written in Rust, optimized for memory footprint and performanceOpen sourceRust · GPL-3.0Verified · Active 1.7kGitHub starscli-continuesSDK / libraryresume any AI coding session in another tool — Claude Code, Copilot, Gemini, Codex, CursorOpen sourceTypeScript · MITVerified 1.5kGitHub stars10xAgent10x - Up to 20x faster AI coding with multi-step Superpowers. Open-source agent with smart model routing, BYOK, fully self-hosted.Open sourceTypeScript · MITVerified 1.4kGitHub starsvibecode-pro-max-kitAgentYour AI forgets. This remembers. Spec-driven coding harness for vibecoders, product owners, CEOs and real builders — self-improving context memory, 15 agents, 33 skills working with /goal,Open sourceJavaScript · MITVerified 1.1kGitHub starsdao-codeAgentOpen-source TypeScript terminal coding agent for DeepSeek-V4 — builds on DeepSeek's strong price-performance and ultra-cheap cache pricing, engineering byte-stable prefixes and cache-reusing forks soOpen sourceTypeScript · MITVerified · Active 1.1kGitHub starsspec_driven_developAgentSpec-driven development workflow for AI coding agents: architecture-first planning, task decomposition, GitHub Issue/PR tracking, Deep Discuss, and adaptive control for Claude Code, Codex, Cursor,Open sourcePython · MITVerified 975GitHub starsUnrealClaudeAgentClaude Code CLI integration for Unreal Engine 5.7 - Get AI coding assistance with built-in UE5.7 documentation context directly in the editor.Open sourceC++Verified 905GitHub starsai-maestroFrameworkAI Agent Orchestrator with Skills System - Give AI Agents superpowers: memory search, code graph queries, agent-to-agent messaging. Manage Claude, Codex or any AI Agent from one dashboard.Open sourceTypeScript · MITVerified · Active 799GitHub starsopenyakAgentOpen-source local-first AI agent for desktop work. No account, no telemetry: use local models with Ollama/Rapid-MLX or bring your own provider key.Open sourcePython · Apache-2.0Verified · Active 703GitHub starsAsyncAgentIDE, A native-feeling AI coding workspace that blends chat, planning, agent execution, and project navigation into a unified desktop experience.Open sourceTypeScript · Apache-2.0Verified 474GitHub starsospecFrameworkSpec-driven, agentic workflow framework for AI coding agents. Turn a request into a verifiable goal loop — plan, act, verify — with durable specs and evidence in your repo.Open sourceJavaScript · MITVerified · Active 453GitHub stars
Frequently asked
- What are the best open-source coding agents?
- The projects listed below, ranked by maintained adoption — GitHub stars plus recent activity — so you see what's genuinely used and still maintained, not abandoned.
- Are open-source coding agents free?
- The software is free to run and self-host. You still pay for the infrastructure you run it on and any model or API usage it makes.
- Open-source or commercial coding agents — which should I choose?
- Pick open source for control, privacy, and no lock-in when you're happy to host and maintain it; pick a commercial product for a managed, supported experience. You can compare both in the full coding agents category.