Parallel Code

Parallel Code is a free, open source desktop workspace for running several AI coding agents at once. It supports Claude Code, Codex CLI, Gemini CLI, Copilot CLI and Antigravity CLI. Each task gets its own git branch and worktree, so agents work in separate working copies, and the user inspects each diff and changed files before merging the branch from the sidebar. The workflow has three steps: define a task and choose an agent, let it run in its own workspace, then review and keep the changes wanted. The vendor suggests dividing a backlog across agents, running one agent on a flaky test while another builds a feature, and giving two agents the same problem with different directions to compare results. Agent command line tools can run in real terminals, or users can use built in chat for Claude Code and Codex with approvals and context usage shown. Developers keep their own editor, whether VS Code, Cursor, JetBrains or Sublime. Further features include guided tours through a plan, changed file or branch, per task mind maps and reasoning graphs that agents can read and extend, and agents that delegate subtasks. The app is available for macOS and Linux and is MIT licensed. It is built by Johannes Millan. No paid plans are listed, and users pay their own agent providers for any model usage.