Harness is an open-source command center for coding agents. It brings together agents like Claude Code, Codex, and Hermes, whether they run at work, at home, or in the cloud, so every agent on every machine works side by side. Use the native desktop app, type hn in your terminal, or answer agents by voice on the iOS and Android apps. Everything stays end-to-end encrypted. Beyond code, there are 49 harnesses for CAD, circuits, robots, games, and music. Free on Mac and Linux.
Launch Team / Built with
NL
DE
Launch Date:
October 21, 2026