Your AI Coding Sessions,
Everywhere You Go
Run Claude Code, Codex, Gemini, and OpenCode on your computer — then continue seamlessly from your phone, browser, or desktop app.
Pre-release: Happier isn’t ready for general use yet.
We’re still preparing the first public release. Follow along on Discord, GitHub, and Discussions.
Works seamlessly with your favorite AI coding agents
Powerful features, tailored to you
Everything you need to make AI-assisted coding portable, collaborative, and reliable — without sacrificing privacy.
Collaborative Sessions
Share sessions with teammates and friends using private or public links. Pair program with agents in real-time.
Broad Agents Support
Works with Claude Code, Codex, Gemini, OpenCode and more — via subscriptions or API keys.
Persistent Resume
Resume after restarts, archive sessions, and return later as if they never ended.
Seamless Switching
Move between terminal, web UI, and mobile while keeping full context. Never lose your place.
Infinite History
Scroll back through long sessions. Your full conversation history is always available.
Pending Queue
Edit, reorder, and refine queued prompts before the agent processes them.
E2E Encryption
Signal-style encryption via TweetNaCl. Your keys never leave your devices.
tmux Friendly
Resume remote-started sessions locally with a smooth tmux workflow.
Comprehensive control of your coding sessions
Explore the workflow at a glance. Switch categories to see the product area and the feature explanation.
Sessions you can trust
Persistent sessions, reliable resume, and full history across devices — designed for long-running agent workflows.
Follow Along (Pre-release)
We’re building Happier in the open. For now, the best way to stay updated is to join the community and track progress.
Join Discord
Follow progress, ask questions, and help shape what we build next.
Open Discord →
Star / Watch on GitHub
Track commits, issues, and releases as we move toward the first public launch.
Open GitHub →
Read Discussions
See what we’re thinking and add feedback while things are still evolving.
Open Discussions →
Your Code is Your Code. Private. Always.
Happier is designed with privacy as a foundation, not an afterthought. We use the same encryption technology trusted by Signal.
End-to-End Encryption
Built using TweetNaCl, the same cryptographic library used by Signal. Your data is encrypted before it leaves your device.
Zero-Knowledge Architecture
Servers cannot read your data. Encryption keys never leave your devices. We literally cannot access your code.
Built in Switzerland
Developed in Switzerland with a strong focus on data protection, privacy laws, and developer transparency.
Built by Developers, for Developers
Happier is completely open-source. We built this because we wanted a more powerful, more social way to interact with AI agents — and we want to build it in the open, shaped by the people who actually use it.
Open Development
Transparent discussions, public roadmap, and visible progress. See exactly what we're building.
Fast Feedback Loops
Quick responses on issues and pull requests. We iterate rapidly based on real user needs.
Real Developer Pain
Focus on solving actual problems, not chasing hype. Every feature has a real use case behind it.
Stay in the Loop
We’ll announce the first public release on Discord and GitHub.