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Agent workspace · Happier

Happier

Client and orchestrator that runs coding agent CLIs on your machines and lets you start, watch and steer sessions from desktop, web or phone, with end-to-end encryption and an optional worktree per session.

Reviewed by the Termdex team · facts checked 2026-10-29 against 5 vendor sources · how we check

Official site

Happier review

Happier runs coding agent CLIs on your own machines and lets you start and steer sessions from desktop, web, iOS or Android. It is MIT licensed and free. We read the vendor's site and GitHub pages in October 2026. We did not run an independent test.

Who it is for

Developers who want an open-source way to run agent sessions on several machines and reach them from a phone or browser.

What stands out

The site lists 13 built-in agents, including Claude Code, Codex, OpenCode, Cursor, Gemini, Copilot and Pi. A custom ACP backend adds other CLIs.
Each session can use its own git worktree, chosen per session, or the folder you are in. The README says you can run as many sessions as you like and pick the machine, folder, agent and model for each. The command `happier mcp serve` lets other MCP hosts create sessions and send messages.

Clients cover a desktop app and CLI for macOS, Windows and Linux, a web app, and iOS and Android apps. The site describes end-to-end encryption and a self-hostable relay. Desktop release v0.2.19 was published on 23 October 2026. The repository showed 2,088 stars on 29 October 2026.

Price and licence

The site says the CLI, apps, desktop app, web app and relay are free, with no seat count, trial or feature gate. You still pay for your own agent subscriptions. The LICENCE file is MIT, copyright "Happy Coder Contributors".

Where it falls short

Alternatives

The project it grew from is Happy. For a desktop-first worktree manager, see Orca.

Facts: platforms, price and licence

platforms
macOSWindowsLinuxiOSAndroidWebDesktop app and CLI for macOS, Windows and Linux; web app at cloud.happier.dev; iOS (incl. iPad) and Android apps, with a direct APK on GitHub releases. Desktop releases seen are 0.2.x.
price
FreeSite says the CLI, apps, desktop app, web app and relay are free and MIT-licensed with 'no seat count, no trial, no feature gate'; you pay your own agent subscriptions (seen 2026-10-29).
source
Open sourceLicence: MIT
github
happier-dev/happier 2.1k stars, seen 2026-10-29

Happier features

✓ documented · – absent or not in its feature list · ? not verified

Happier strengths

  • MIT licence; CLI, apps and a self-hostable relay are on GitHub
  • Each session can run in its own git worktree, chosen per session
  • happier mcp serve lets other MCP hosts create sessions and send messages
  • Desktop, web, iOS and Android clients; the site lists 13 built-in agents and a custom ACP backend for others

Happier weak points

  • Repository created in December 2025, desktop releases are 0.2.x
  • Started as contributions to the Happy project and now follows its own direction, so its history overlaps with that project
  • The website (13 agents) and README (17 named plus '30+ more') give different agent counts
  • Worktrees are optional; the default is the current folder

Who Happier is for

best for
Developers who want an open-source way to run agent sessions on several machines and reach them from a phone or browser.
look elsewhere if
Users who want a plain terminal emulator or an SSH client with SFTP.

Lists that include Happier

Sources and what we could not verify

Checked 2026-10-29. Prices and features change; the vendor's page is the authority.

Not verified