Open Source AI Coding Agent Orchestrators using CSS
A curated collection of the best open source tools that run and coordinate multiple AI coding agents in parallel across isolated git worktrees, also known as agent harnesses or agentic dev environments. using CSS.
Org chart, budgets, and governance for AI agent teams
Stars
Stars growing quickly over the last 30 days104,919Last commit
7 hours agoLicense
MIT
Manages teams of AI agents across business functions with org charts, goal alignment, cost tracking, ticket tracing, and board-level governance controls.
Open Source Alternative to:
Run multiple AI coding agents in parallel, side by side
Stars
Stars growing quickly over the last 30 days98,751Last commit
6 hours agoLicense
MIT
Agent Development Environment that runs Claude Code, Codex, Gemini, and other CLI agents in parallel across isolated git worktrees, with terminals, browser, diff review, and git tools built in.
Open Source Alternative to:
AI-powered coding made simple and efficient
Stars
Stars growing quickly over the last 30 days28,683Last commit
6 hours agoLicense
MIT
Advanced AI coding assistant that enhances development workflow with intelligent code suggestions, automated debugging, and seamless integration.
Open Source Alternative to:
Run coding agents from your phone, desktop, or terminal
Stars
Stars growing quickly over the last 30 days21,488Last commit
6 hours agoLicense
Apache-2.0
Self-hosted orchestrator for coding agents like Claude Code, Codex, and Cursor, controlled from phone, desktop, web, or CLI.
Open Source Alternative to:
Run dozens of AI coding agents in parallel on your machine
Stars
Stars growing over the last 30 days15,387Last commit
6 hours agoLicense
Elastic-2.0
macOS app that orchestrates multiple AI coding agents simultaneously, each in its own isolated Git worktree, so you can work on many tasks at once.
Open Source Alternative to:
Common layer for composing and governing AI agents
Stars
Stars growing over the last 30 days10,914Last commit
6 hours agoLicense
Apache-2.0
Meta-harness that sits above Claude Code, Codex, and other AI agents to add policy enforcement, sandboxing, and real-time collaborative sessions.
Open Source Alternative to:
Dashboard for running multiple coding agents in parallel
Stars
Stars growing over the last 30 days6,031Last commit
11 hours agoLicense
Apache-2.0
Desktop app that runs 25+ coding agents simultaneously, each isolated in its own Git worktree, so you can orchestrate code changes without switching tools.
Open Source Alternative to:
Code with Claude, Codex, Gemini, and more in one workspace
Stars
Stars growing quickly over the last 30 days2,126Last commit
21 hours agoLicense
MIT
Desktop coding workspace that connects to AI subscriptions you already have, with parallel agents, worktrees, one-click PRs, and multi-project management.
Open Source Alternative to:
Parallel AI agent workspaces with Git and project context
Stars
Stars growing over the last 30 days1,347Last commit
6 hours agoLicense
Apache-2.0
Run multiple AI coding agents in isolated Git worktrees, with cross-repo context, GitHub/Linear integrations, and support for Claude, Codex, Cursor, and more.
Open Source Alternative to:
Run Claude Code, Codex, Grok, and more from one app
Stars
Stars growing quickly over the last 30 days116Last commit
8 hours agoLicense
Apache-2.0
A Mac app that brings multiple AI coding agents into a single window, running on your existing subscriptions with parallel agent sessions, PR management, and a built-in browser.
Open Source Alternative to:
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