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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 gemini-cli (107k stars), with openinterpreter and jcode close behind. Rankings shift as projects gain stars and ship commits.

30 open-source records · all coding agents · more best-of lists · how we rank

gemini-cliAgentAn open-source AI agent that brings the power of Gemini directly into your terminal.TypeScript · 107k stars · Apache-2.0 · Aug 2026openinterpreterAgentA lightweight coding agent for open models like Deepseek, Kimi, and QwenRust · 68k stars · Apache-2.0 · Aug 2026jcodeAgentCoding Agent HarnessRust · 18k stars · MIT · Aug 2026Skill_SeekersSDK / libraryConvert documentation websites, GitHub repositories, and PDFs into Claude AI skills with automatic conflict detectionPython · 15k stars · MIT · Aug 2026openevolveAgentOpen-source implementation of AlphaEvolvePython · 7.2k stars · Apache-2.0 · Jul 2026sembleSDK / libraryFast and Accurate Code Search for Agents. Uses ~98% fewer tokens than grep+readPython · 5.9k stars · MIT · Aug 2026agents-cliAgentThe CLI and skills that turn any coding assistant into an expert at creating, evaluating, and deploying AI agents on Google Cloud.Python · 5.6k stars · Apache-2.0 · Aug 2026vibesdkPlatformAn open-source vibe coding platform that helps you build your own vibe-coding platform, built entirely on Cloudflare stackTypeScript · 5.3k stars · MIT · Aug 2026MonkeyCodePlatformAI coding platform for teamsTypeScript · 4.4k stars · AGPL-3.0 · Aug 2026command-codeAgentCommand Code AI3.7k stars · Aug 2026claude_codex_bridgeAgentVisible multi-agent CLI workspace for mixing Codex, Claude, Gemini, Kimi, Qwen, Cursor, Copilot, Pi, OpenCode, and other AI coding agentsPython · 3.4k stars · Aug 2026grok-cliAgentAn open-source coding agent for the Grok APITypeScript · 3.4k stars · MIT · Jul 2026
Signal inventory open — put your agent in front of people choosing oneReserve a signal slot →
teaql-agent-kitSDK / libraryDeterministic execution for non-deterministic AI.Python · 2.8k stars · MIT · Aug 2026ORG2AgentOpen-source Cursor-style agent IDE — but built for reviewability and control. Built-in rust harness; supports 10+ CLIs.TypeScript · 2.7k stars · AGPL-3.0 · Aug 2026cocoindex-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!Python · 2.7k stars · Apache-2.0 · Aug 2026HolyClaudeAgentAI coding workstation: Claude Code + web UI + 8 AI CLIs + headless browser + 50+ toolsJavaScript · 2.5k stars · MIT · Aug 2026little-coderAgentA harness optimized to smaller LLMsTypeScript · 2.4k stars · Apache-2.0 · Aug 2026open-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.TypeScript · 2.0k stars · MIT · Aug 2026CoreCoderAgentMinimal AI coding agent (~1,000 lines of Python) inspired by Claude Code. Works with any LLM. Think NanoGPT for coding agents. Formerly NanoCoder.Python · 1.7k stars · MIT · Aug 2026zerostackAgentLightweight coding agent written in Rust, optimized for memory footprint and performanceRust · 1.6k stars · GPL-3.0 · Aug 2026cli-continuesSDK / libraryresume any AI coding session in another tool — Claude Code, Copilot, Gemini, Codex, CursorTypeScript · 1.4k stars · MIT · May 202610xAgent10x - Up to 20x faster AI coding with multi-step Superpowers. Open-source agent with smart model routing, BYOK, fully self-hosted.TypeScript · 1.4k stars · MIT · Jan 2026dao-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 soTypeScript · 1.3k stars · MIT · Aug 2026vibecode-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,JavaScript · 1.1k stars · MIT · Jun 2026spec_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,Python · 967 stars · MIT · Jul 2026UnrealClaudeAgentClaude Code CLI integration for Unreal Engine 5.7 - Get AI coding assistance with built-in UE5.7 documentation context directly in the editor.C++ · 882 stars · Jun 2026ai-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.TypeScript · 748 stars · MIT · Aug 2026openyakAgentOpen-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.Python · 693 stars · Apache-2.0 · Aug 2026ospecFrameworkSpec-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.JavaScript · 488 stars · MIT · Jul 2026AsyncAgentIDE, A native-feeling AI coding workspace that blends chat, planning, agent execution, and project navigation into a unified desktop experience.TypeScript · 475 stars · Apache-2.0 · May 2026

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.