About Orca
Orca is an open-source Agent Development Environment (ADE) designed to run CLI-based coding agents in parallel across isolated git worktrees. It features a Ghostty-inspired terminal multiplexer, built-in code editor, interactive diff review, and SSH support for fast agentic development loops.
Ideal for
Running multiple Claude Code instances in parallel worktreesManaging isolated Git branches and reviews for AI agentsDeveloping software packages using split-screen agent terminals
Key Features
Pros
- Runs multiple AI coding agents simultaneously in parallel
- Isolates coding agent tasks using native git worktrees
- Features a Ghostty-class multiplexed terminal with split windows
- Includes built-in file editor and diff review workspace
- Fully free and open-source under the MIT license
- Cross-platform compatibility for macOS, Windows, and Linux
Cons
- Requires local setup of command-line AI coding tools
- Parallel execution of multiple agents consumes high system resources
- Still in active development with daily features shipping
Alternatives to Orca
Open Code Review
Agent Native Code Review Tool
Pilot (by Altic)
AI-Powered A/B Testing Automation
Altic MCP
macOS Automation MCP Server for Claude
OpenCode
Open Source AI Coding Agent
Kimi AI
Multimodal Visual Coding Agent
Kilo
Open Source Coding Agent
