# Happy

A mobile and web client for using Claude Code and Codex remotely, with end-to-end encryption, push notifications and instant switching between phone and desktop.

Happy is a mobile and web client for Claude Code and Codex, letting a developer keep working with either agent away from their computer, with end-to-end encryption so code never leaves their devices unencrypted. A CLI wrapper starts the usual agent, then can restart the session in remote mode for phone control, and switching back to the computer takes one keypress.

It sends push notifications when an agent needs permission or hits an error, and is available as a native macOS desktop app, a web and mobile app built with Expo, a command-line interface, a remote agent control CLI for creating, sending to and monitoring sessions, and a backend server that handles encrypted sync between them.

It is open source, with no telemetry or tracking, and is written in TypeScript under the MIT license.

Website: https://happy.engineering