Jean Jean, an open-source development environment for AI-assisted coding, is available under the Apache 2.0 license, free forever with no paid tiers or feature gates. It enables running multiple AI agents in parallel, each in its own isolated Git worktree, and integrates chat sessions, terminals, GitHub, and Linear in one interface. Jean supports OpenCode, Claude CLI, Codex CLI, Cursor, Grok, Kimi Code, and other providers, serving as an alternative to Claude Code or Jules for multi-agent coordination. Open Source Alternative to: Last 30 days Last commit Repository age Version License Self-hosted Repository Jean is a dev environment built specifically for AI-assisted coding. Instead of running one agent in one terminal, it lets you spin up multiple agents in parallel, each in its own isolated Git worktree, so they can work on separate branches simultaneously without stepping on each other. It's opinionated by design. Jean makes decisions about how AI-assisted development should work, so you don't spend time configuring workflows from scratch. Git worktrees, chat sessions, terminals, GitHub and Linear integrations all live in one interface. Key capabilities: Jean supports OpenCode /opencode , Claude CLI, Codex CLI, Cursor, Grok, Kimi Code, and others. You bring your own subscription for each provider. It's a solid alternative to tools like Claude Code /alternatives/claude-code or Jules /alternatives/jules when you need multi-agent coordination and cross-repo context in one place. Licensed under Apache 2.0, free forever, with no paid tiers or feature gates. Last 30 days Last commit Repository age Version License Self-hosted Repository Every Sunday we deconstruct one proprietary app and pick the best open source alternatives worth switching to. Stars Last commit License Stars Last commit License Stars Last commit License Stars Last commit License Compare with Stars Stars Stars Stars Stars Last commit License Compare with Last commit License Compare with Last commit License Compare with Last commit License Compare with Last commit License Compare with