Parallel Code
FreeRun Claude Code, Codex, and Gemini side by side — each in its own git worktree
FreeFree tier
#TypeScript
Inputs: textOutputs: code
About Parallel Code
Parallel Code is a free and open-source desktop application that enables developers to run multiple AI coding agents simultaneously, each working in an isolated git branch and worktree. It supports CLI-based agents like Claude Code, Codex CLI, Gemini CLI, Copilot CLI, and Antigravity CLI, and integrates with any preferred editor (VS Code, Cursor, JetBrains, Sublime). Developers can dispatch tasks in parallel, review diffs side-by-side, and merge changes with one click—all without additional platform fees or proxy services. The tool is keyboard-first, offers smartphone monitoring via QR code, and is MIT licensed.
Key Features
Dispatch AI coding agents in parallel, each in its own git branch and worktree
Supports Claude Code, Codex CLI, Gemini CLI, Copilot CLI, and Antigravity CLI
Works with any editor: VS Code, Cursor, JetBrains, Sublime
Review diffs and merge with one click from the sidebar
Free and open source under MIT license
Runs actual terminal CLIs in a native desktop app (not a web wrapper)
Keyboard-first with shortcuts; monitor agents from phone via QR code
No extra subscription required; API keys stay on your machine
Pros & Cons
Pros
- Allows true parallel execution of AI coding agents without workspace collisions
- Integrates with existing editors and CLI agents without forcing a new workflow
- Free and open source; no additional platform fees
- Isolates each agent's changes in separate git branches for clean review and selective merging
- Supports monitoring agent terminal output from a smartphone
Cons
- Requires separate installation and configuration of each AI agent's CLI tool
- Only works with git repositories (requires git branches and worktrees)
- Desktop app only—no web-based interface
- Newer tool with a relatively small community and limited third-party integrations
Best For
Divide a backlog of tickets among multiple agents running in parallelRun a background agent to investigate a flaky test while another builds a featureA/B test different prompt framings by dispatching the same task to multiple agents and comparing diffs
FAQ
Does it work with my IDE?
Yes. Parallel Code is a standalone Electron app. You keep using your preferred editor (VS Code, Cursor, JetBrains, Sublime, etc.). It manages the agents and worktrees; your editor handles the code.
Which AI agents are supported?
Claude Code, Codex CLI, Gemini CLI, Copilot CLI, and Antigravity CLI are supported out of the box. Any CLI-based coding agent can be added.