Skip to main content

Your AI Development Environment

Jean is a desktop AI assistant that helps you manage multiple projects, git worktrees, and chat sessions with Claude CLI, Codex CLI, and OpenCode in one unified interface.

Get StartedLearn More

Get started in minutes

Follow these steps to install Jean and start your first AI-powered development session

1

Download and install Jean

Download the latest version for your platform from GitHub Releases or install via Homebrew on macOS:
brew tap coollabsio/jean
brew install --cask jean
2

Install Claude CLI, Codex CLI, or OpenCode

Jean works with your choice of AI backend. Install at least one:
  • Claude CLI: Install from Anthropic’s official CLI
  • Codex CLI: Install OpenAI’s Codex CLI tool
  • OpenCode: Install the OpenCode CLI assistant
See the installation guide for detailed instructions on each backend.
3

Add your first project

Launch Jean and add a git repository:
  1. Click Add Project in the sidebar
  2. Select your repository directory
  3. Jean will automatically detect the default branch
Jean uses git worktrees to create isolated development environments for each task or feature.
4

Create a worktree and start chatting

Create your first worktree and begin an AI chat session:
  1. Click New Worktree for your project
  2. Jean creates a new git worktree with a unique branch
  3. Start chatting with your AI assistant to build features, fix bugs, or explore code
Use execution modes (Plan, Build, Yolo) to control how the AI approaches tasks.

Everything you need for AI-powered development

Powerful features designed to streamline your development workflow

Multi-Project Management

Organize multiple repositories with custom avatars, MCP servers, and per-project AI settings

Git Worktree Automation

Automatically create isolated git worktrees for each task with branch management

AI Chat Integration

Chat with Claude, Codex, or OpenCode with model selection, thinking levels, and custom prompts

Magic Commands

AI-powered PR creation, code review, commit messages, and GitHub issue investigation

Session Management

Multiple chat sessions per worktree with archiving, recovery, and canvas views

GitHub Integration

Investigate issues and PRs, checkout PRs as worktrees, auto-archive on merge

Developer Tools

Integrated terminal, diff viewer, file preview, and open in your favorite editor

Remote Web Access

Built-in HTTP server with WebSocket support for browser-based access

Core concepts

Understand the building blocks of Jean

Projects and Worktrees

Learn how Jean organizes repositories and creates isolated development environments

Sessions

Understand chat sessions, context management, and session lifecycle

AI Chat

Explore AI backends, model selection, and prompt customization

Execution Modes

Master Plan, Build, and Yolo modes for different development workflows

Popular guides

Step-by-step tutorials for common tasks

Setting up projects

Configure projects with custom avatars, MCP servers, and AI backend preferences

Read guide

Using magic commands

Leverage AI-powered commands for PR creation, code review, and GitHub workflows

Read guide

GitHub workflows

Integrate with GitHub issues, PRs, and CI/CD workflows seamlessly

Read guide

Customization

Personalize themes, fonts, keyboard shortcuts, and AI prompts to match your workflow

Read guide

Resources and community

Get help, contribute, and stay updated

GitHub Repository

View source code, report issues, and contribute to the project

Official Website

Learn more about Jean and download the latest version

API Reference

Explore the HTTP API for remote access and automation

Ready to supercharge your development workflow?

Download Jean and start building with AI assistance today

Get Started NowDownload Latest Release