Download K2
Free, Fair Source, self-hosted. One daemon, many front ends — pick the pieces for your machines.
Latest release: v0.40.34 · what's new
macOS
K2 for Mac
The full desktop app plus the always-on daemon, in one install. Apple Silicon, signed & notarized.
Linux Desktop
K2 for LinuxBeta
The same desktop app, now on Linux. It's young — tell us what breaks on GitHub or Discord.
The app is a window onto the k2-daemon: install the daemon (see Linux Server below) for full autostart, or the app will sit at “Connecting” until a daemon is running.
Linux Server
Headless daemon
No GUI required. Run the always-on daemon on a VPS, a home server, or a Raspberry Pi — then reach it from the desktop app, the web, or your phone.
Fetches the right binary for your machine, minisign-verifies it against the K2 updater key, and installs a systemd service.
Mobile Companion
Take it with you
K2 Companion puts your agent workspace on your phone. Monitor agents, chat with running sessions, and approve reviews — all from mobile.
Looking for something else? Every artifact for every version lives on GitHub Releases.