Orca is an application development environment designed for orchestrating fleets of parallel AI agents, built in TypeScript and available across desktop and mobile platforms. The project is maintained by Stably AI and has grown to nearly 12,000 GitHub stars with 800 forks as of mid-2026. The repository demonstrates active development with a median issue and pull request response latency of zero hours and a mean response time of 9.5 hours across over 1,200 tracked items, indicating a highly responsive development team.
The core functionality of Orca centers on running multiple coding agents simultaneously, each operating within isolated git worktrees. Users can execute agents like Codex, ClaudeCode, OpenCode, or Pi side-by-side and compare their outputs before merging the best results. This parallel execution model is designed to accelerate development workflows by allowing multiple approaches to be explored concurrently. The application supports running agents with users' own API subscriptions, giving developers control over their infrastructure and costs.
The platform includes a mobile companion application available on iOS through the App Store and TestFlight, as well as Android via APK distribution. The mobile app enables users to monitor and steer agents remotely, receive notifications when agents complete tasks, and send follow-up instructions from anywhere. This mobile-first approach extends the IDE experience beyond the desktop environment.
Orca provides terminal functionality comparable to Ghostty-class terminals, featuring WebGL rendering, infinite splits, and persistent scrollback that survives application restarts. The integrated browser includes a Design Mode that allows users to click UI elements in a real Chromium window and automatically send the corresponding HTML, CSS, and cropped screenshots directly into agent prompts. Native integrations with GitHub and Linear enable users to browse pull requests, issues, and project boards within the application, opening worktrees from tasks without context switching.
The platform supports SSH worktrees for running agents on remote machines with full file editing, git operations, and terminal access, including automatic reconnection and port forwarding. Users can annotate AI-generated diffs with comments that are sent back to agents for review and editing before committing. The application includes a VS Code-compatible editor with autosave functionality and supports dragging files and images directly into agent prompts.
Orca CLI provides scriptable access to workflows through commands like worktree create, snapshot, click, and fill, enabling agents to drive Orca itself. Additional features include quick open search across worktrees, files, agents, and commands, account switching with usage tracking for Claude and Codex APIs, rich previews for Markdown and PDFs, and Computer Use capabilities allowing agents to interact with desktop applications.
The most active contributors tracked by GitGenius are AmethystLiang with 1,907 events, Jinwoo-H with 1,022 events, and nwparker with 784 events. The repository shows consistent activity with bug reports comprising 458 labeled issues, enhancements at 348, and priority-one items at 314. The project maintains overlapping contributors with Milvus, AutoGPT, and ActivePieces repositories. Despite GitGenius classification data suggesting blockchain and cryptocurrency associations, the repository's actual focus is on agent orchestration and development tooling for AI-assisted coding workflows.
