Open sourceTypeScript · ≈2.1k stars · MIT
Happier
End-to-end encrypted multi-device control room for orchestrating coding agents.
Happier is an open-source, self-hostable web, desktop and mobile client and orchestrator for coding agents including Claude Code, Codex, OpenCode, Pi, Cursor and others, with any ACP-speaking agent addable from settings. Agents run on the user's own machines through a CLI and daemon, and sessions can spawn subagents across agents, for example Claude asking Codex for a review, or switch agents mid-session. Users can approve, steer, review and commit from phone, desktop or browser, with traffic end-to-end encrypted. It uses users' existing subscriptions.
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Connections
Relations from the Harness Hub knowledge graph, as charted in the State of Harness reports.
Maintained by · 1
- HappierOrganisation
Built on · 2
- Claude CodeProject
- CodexProject
Similar entries · 1
- PaseoProject
Sources
Verified Oct 29, 2026