Welcome

Happy lets you control AI coding agents from anywhere - your phone, tablet, or web browser. The key difference from all those paid services? Happy those AI coding agents runs on computers YOU own. Your desktop, laptop, server, or even a Raspberry Pi. As long as it’s connected to the internet, you can use Happy to control Claude Code on that machine. Leave the house, fire off coding tasks and come back to pull requests ready to review.

With Happy Coder you get:

Zero workflow disruption: Run Claude Code on any computer you control. Use your custom setup, special hardware, or unique tools. No need to change how you work.
Work from anywhere: Start coding on your desktop, then continue from your phone. Every Claude Code feature works on mobile: plan mode, custom agents, custom MCP servers, everything.
Multiple sessions: Run several Claude Code instances at once. Have one working on your frontend while another handles backend tasks. Switch between them instantly.
End-to-end encryption: Your code stays on your machines. Messages between your devices are encrypted.
No cloud costs: Since you’re using your own computers, there are no usage fees or subscriptions. Happy Coder is free and open source.

Why Happy Coder?

Unlike cloud services that run code on rented machines, Happy Coder works with computers you already have. This means:

Use any hardware you want
Keep your exact development setup
Work with private or secure systems
No monthly bills or usage limits
Complete control over your environment

Whether you’re hacking on a personal project, working with specialized hardware, or just want to check on long-running tasks from your phone, Happy Coder gives you freedom to work your way.

Getting Started

Quick Start

Create your first task from your phone

Set up Happy Coder in minutes and start your first remote session. Install the CLI on your development machine. Connect your phone or tablet to control Claude Code

Using Happy Coder

Managing Sessions

Start, stop, and switch between multiple Claude Code instances

Voice Commands

Use voice to code hands-free while on the go

Notifications

Get alerts when Claude Code needs input or finishes tasks

Resources

Examples

See what you can build with Happy Coder

Community

Join our Discord to get help and share ideas

Contributing

Help improve Happy Coder - we welcome contributions