Happy is unclaimed —

Happy

Leave your desk. Keep your agents moving.·happy.engineering

Happy is an open-source remote control for coding agents such as Claude Code and Codex that run on the user's own computers. It lets users start, steer, approve, and review agent sessions from iOS, Android, or the web, then continue the same session in their terminal. Every session is end-to-end encrypted so only the user's own devices can read it. Because it runs on hardware the user already owns, Happy is free with no usage fees or subscriptions.

What it's for

Start a coding task from your phoneApprove or answer agent prompts remotely when input is neededContinue an agent session in your terminal after starting it elsewhereRun several Claude Code instances at once (e.g. frontend and backend)Check on long-running tasks from your phoneUse voice commands to code hands-freeGet push notifications when an agent needs input or finishes a task

Features 11

CLI installable via npm
Continue the same session in your terminal
Cross-platform access from iOS, Android, and web
End-to-end encryption of session data
Multiple simultaneous agent sessions
Push notifications when agent input is needed or a task finishes
Remote control of coding agents (Claude Code, Codex)
Runs on your own computers (desktop, laptop, server, Raspberry Pi)
Start, steer, approve, and review agent sessions
Support for plan mode, custom agents, and custom MCP servers on mobile
Voice commands for hands-free coding

At a glance

free tieropen sourceself-hostable

TypeWeb app

DeploymentHybrid

PlatformsWeb, iOS, Android

Fordevelopers

CompanyHappy Engineering

Integrations

Claude CodeCodex

Resources

Docs

Pricing

No paid plans mentioned; product is described as free and open source with no cloud costs, usage fees, or subscriptions.

FreeFree

Happy Coder is free and open source; since it runs on your own computers there are no usage fees or subscriptions.