Open Source AI Coding Agents using CSS
A curated collection of the best open source tools that take a task or issue and carry it to completion on their own: planning, editing files, running tests, and opening pull requests. using CSS.
AI coding agent for terminal, IDE, and desktop
Stars
Stars growing over the last 30 days218,185Last commit
6 hours agoLicense
MIT
Open source AI coding agent that works in your terminal, IDE, or desktop app, supporting 75+ LLM providers with no code storage.
Open Source Alternative to:
AI coding agent that works inside your terminal
Stars
130,006Last commit
6 hours agoLicense
Apache-2.0
Terminal-based AI coding agent that inspects files, edits code, runs commands, and integrates into CI pipelines using OpenAI's Codex models.
Open Source Alternative to:
Minimal terminal coding agent you can fully customize
Stars
Stars growing over the last 30 days116,538Last commit
6 hours agoLicense
MIT
Terminal-based coding agent with a minimal core, 15+ LLM providers, tree-structured session history, and a TypeScript extension system for building your own workflows.
Open Source Alternative to:
Autonomous coding agents that complete real engineering tasks
Stars
Stars growing over the last 30 days91,338Last commit
6 hours agoLicense
MIT
AI agent platform that runs autonomous coding agents to plan, write, and ship changes across codebases end-to-end, with support for any model and self-hosted deployment.
Open Source Alternative to:
Open-source AI coding agent for your editor and terminal
Stars
70,588Last commit
8 hours agoLicense
Apache-2.0
AI coding agent that runs inside VS Code and the terminal, supporting multi-file edits, bash execution, and any LLM provider via bring-your-own-key.
Open Source Alternative to:
Coding agent that runs on local and open-weight models
Stars
68,614Last commit
10 days agoLicense
Apache-2.0
Coding agent that lets LLMs write and execute code, manage files, and control your computer using local or low-cost models.
Open Source Alternative to:
General-purpose AI agent for code, workflows, and more
Stars
55,457Last commit
8 hours agoLicense
Apache-2.0
Local AI agent with a desktop app, CLI, and API that connects to 15+ LLM providers and 70+ extensions for code, research, automation, and data tasks.
Open Source Alternative to:
Open-source coding agent for your IDE and terminal
Stars
36,271Last commit
17 hours agoLicense
Apache-2.0
Runs source-controlled AI checks on every pull request, enforcing your engineering standards as native GitHub status checks with suggested fixes.
Open Source Alternative to:
AI coding agent for VS Code, JetBrains, CLI, and Cloud
Stars
27,662Last commit
6 hours agoLicense
MIT
Open source AI coding agent with 500+ models, bring-your-own-key support, and specialized modes for writing, debugging, and planning code across IDEs and CLI.
Open Source Alternative to:
Open source AI coding agent for the terminal and IDE
Stars
28,591Last commit
6 hours agoLicense
Apache-2.0
Terminal-based AI coding agent that reads your codebase, edits files and runs commands, with support for Qwen, OpenAI, Anthropic, Gemini and local models.
Open Source Alternative to:
AI agents that autonomously fix code and resolve GitHub issues
Stars
20,600Last commit
15 hours agoLicense
MIT
State-of-the-art AI agent that uses language models like GPT-4o to autonomously solve GitHub issues, fix bugs, and implement features with configurable YAML setup.
Open Source Alternative to:
AI coding agent that sees your live app and edits code
Stars
719Last commit
18 hours agoLicense
Apache-2.0
Open-source AI coding agent that runs in your browser, sees your live DOM and app state, and makes real code edits from plain English descriptions.
Open Source Alternative to:
Self-hosted AI coding agent that opens real PRs
Stars
Stars growing quickly over the last 30 days295Last commit
7 hours agoLicense
FCL-1.0
Source-available, self-hosted AI coding agent that connects to your repo, tools, and chat to investigate issues and open reviewable PRs on your own infrastructure.
Open Source Alternative to:
Docmost – Open-source wiki software with real-time collaboration, diagrams, AI, SSO, RBAC permissions and more.
CodeRabbit
Bright Data