Mobile and Web client for Codex and Claude Code, with realtime voice, encryption and fully featured
Happy is a TypeScript project that provides iOS, Android, and web clients for running Claude Code and OpenAI Codex remotely from mobile devices or browsers. It works by wrapping the existing CLI tools: users install the `happy` npm package globally and invoke `happy claude` or `happy codex` instead of the native commands, which routes sessions through an end-to-end encrypted relay server. A standout feature is instant device switching: a coding session started on a desktop can be handed off to a phone with a single keypress, and push notifications alert the user when Claude Code needs a permission grant or hits an error. The project is split into four packages covering the CLI wrapper, an Expo-based mobile and web app, a remote agent controller, and the backend sync server. All traffic is encrypted before leaving the user's devices, with no telemetry. The tool targets developers who run long Claude Code or Codex sessions and want to monitor or interact with those agents away from their primary workstation.
- ✓Open-source license (MIT)
- ✓Actively maintained (<30d)
- ✓Healthy fork ratio
- ✓Clear description
- ✓Topics declared
- ✓Documented (README)
git clone https://github.com/slopus/happyTools overview
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<img src="/.github/logotype-dark.png" width="400" alt="Happy">
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Mobile and Web Client for Claude Code & Codex
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Use Claude Code or Codex from anywhere with end-to-end encryption.
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[📱 **iOS App**](https://apps.apple.com/us/app/happy-claude-code-client/id6748571505) • [🤖 **Android App**](https://play.google.com/store/apps/details?id=com.ex3ndr.happy) • [🌐 **Web App**](https://app.happy.engineering) • [🎥 **See a Demo**](https://youtu.be/GCS0OG9QMSE) • [📚 **Documentation**](https://happy.engineering/docs/) • [💬 **Discord**](https://discord.gg/fX9WBAhyfD)
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Step 1: Download App
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<a href="https://apps.apple.com/us/app/happy-claude-code-client/id6748571505"><img width="135" height="39" alt="appstore" src="https://github.com/user-attachments/assets/45e31a11-cf6b-40a2-a083-6dc8d1f01291" /></a> <a href="https://play.google.com/store/apps/details?id=com.ex3ndr.happy"><img width="135" height="39" alt="googleplay" src="https://github.com/user-attachments/assets/acbba639-858f-4c74-85c7-92a4096efbf5" /></a>
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Step 2: Install CLI on your computer
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```bash
npm install -g happy
```
> Migrated from the `happy-coder` package. Thanks to [@franciscop](https://github.com/franciscop) for donating the `happy` package name!
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Step 3: Start using `happy` instead of `claude` or `codex`
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```bash
# Instead of claude, use:
happy claude
# or
happy codex
```
## How does it work?
On your computer, run `happy` instead of `claude` or `happy codex` instead of `codex` to start your AI through our wrapper. When you want to control your coding agent from your phone, it restarts the session in remote mode. To switch back to your computer, just press any key on your keyboard.
## 🔥 Why Happy Coder?
- 📱 **Mobile access to Claude Code and Codex** - Check what your AI is building while away from your desk
- 🔔 **Push notifications** - Get alerted when Claude Code and Codex needs permission or encounters errors
- ⚡ **Switch devices instantly** - Take control from phone or desktop with one keypress
- 🔐 **End-to-end encrypted** - Your code never leaves your devices unencrypted
- 🛠️ **Open source** - Audit the code yourself. No telemetry, no tracking
## 📦 Project Components
- **[Happy App](https://github.com/slopus/happy/tree/main/packages/happy-app)** - Web UI + mobile client (Expo)
- **[Happy CLI](https://github.com/slopus/happy/tree/main/packages/happy-cli)** - Command-line interface for Claude Code and Codex
- **[Happy Agent](https://github.com/slopus/happy/tree/main/packages/happy-agent)** - Remote agent control CLI (create, send, monitor sessions)
- **[Happy Server](https://github.com/slopus/happy/tree/main/packages/happy-server)** - Backend server for encrypted sync
## 🏠 Who We Are
We're engineers scattered across Bay Area coffee shops and hacker houses, constantly checking how our AI coding agents are progressing on our pet projects during lunch breaks. Happy Coder was born from the frustration of not being able to peek at our AI coding tools building our side hustles while we're away from our keyboards. We believe the best tools come from scratching your own itch and sharing with the community.
## 📚 Documentation & Contributing
- **[Documentation Website](https://happy.engineering/docs/)** - Learn how to use Happy Coder effectively
- **[Contributing Guide](docs/CONTRIBUTING.md)** - How to contribute, PR guidelines, and development setup
- **[Edit docs at github.com/slopus/slopus.github.io](https://github.com/slopus/slopus.github.io)** - Help improve our documentation and guides
## License
MIT License - see [LICENSE](LICENSE) for details.
What people ask about happy
What is slopus/happy?
+
slopus/happy is tools for the Claude AI ecosystem. Mobile and Web client for Codex and Claude Code, with realtime voice, encryption and fully featured It has 21.8k GitHub stars and was last updated 2d ago.
How do I install happy?
+
You can install happy by cloning the repository (https://github.com/slopus/happy) or following the README instructions on GitHub. ClaudeWave also provides quick install blocks on this page.
Is slopus/happy safe to use?
+
Our security agent has analyzed slopus/happy and assigned a Trust Score of 100/100 (tier: Verified). See the full breakdown of passed checks and flags on this page.
Who maintains slopus/happy?
+
slopus/happy is maintained by slopus. The last recorded GitHub activity is from 2d ago, with 772 open issues.
Are there alternatives to happy?
+
Yes. On ClaudeWave you can browse similar tools at /categories/tools, sorted by popularity or recent activity.
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