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For iPhone, iPad and Android · Mac and Linux

Your terminal,
your agents,
your phone.

Claude Code wants an answer. Your build just finished. Shellbell puts the terminals and coding agents running on your computer in your pocket, so you can keep them moving from anywhere.

Download Shellbell How it works
  • Free and open source
  • No account
  • End-to-end encrypted
Download on the App Store
iPhone and iPad
Get it on Google Play
Android
Shellbell showing a Claude Code conversation as Chat, with a box to message Claude

Works with what you already run.

Terminals

iTerm2, tmux andHerdr. Your sessions stay where they are; nothing gets moved or restarted.

Agents in Chat

Claude Code, Codex, Gemini CLI and Antigravity read as a conversation, with their full history and a box to reply.

Every other agent

Cursor, OpenCode, Copilot and the rest open in their terminal, exactly as on your desk.

Step away. Stay in the loop.

Your agents and shells keep running on your computer. Your phone is another way into the same sessions.

Shellbell listing coding agents on a Mac, with one marked waiting for you

See every agent at a glance.

Each session shows which agent runs it, what it’s working on, and whether it’s busy, idle or waiting for you.

An agent asking for permission to write a file, with Yes and No choices

Answer when one asks.

A notification takes you straight to the question. Approve, choose an option, or type a reply, and the agent carries on.

A full terminal session on the phone with keys for Esc, arrows and Enter

Drop into the terminal.

Every session is also the real terminal: run a command, scroll back, press Esc or Ctrl‑C. Nothing moves off your computer.

On your computer

A Mac app that keeps it all reachable.

Your phone can only reach a computer that’s awake. The Shellbell Mac app runs from the menu bar and handles that for you.

  • Keeps your Mac awake while you’re away, even with the lid closed when it’s plugged in.
  • Pairs your phone with a QR code. No account, no passwords.
  • Checks your terminals and says what to fix if one isn’t ready.
  • Updates itself when you choose Install and Restart.
Get the Mac app Prefer the command line?

On Linux, or a Mac you’d rather keep app-free, one command installs the same service.

Shellbell’s Mac settings: connected, an update check, and Keep this Mac awake turned onShellbell’s Mac pairing window with a QR code to scan from the phone

Set up in a few minutes.

One app on your computer, one on your phone, and a QR code between them.

  1. 1

    Install Shellbell on your computer.

    The Mac app, or one command on macOS and Linux. It finds the sessions you already run.

  2. 2

    Install the phone app.

    From the App Store on iPhone and iPad, or Google Play on Android.

  3. 3

    Scan the code once.

    Approve the phone on your computer. From then on it connects from anywhere.

Private by design.

Nobody else can read your terminal, including us.

End-to-end encrypted

Only your phone and your computer can read terminal content. The relay that introduces them never sees your screens, history or input.

Security and privacy

No open ports

Both devices connect out, so it works from any network without port forwarding, a VPN or SSH tunnels.

How it connects

Open source, self-hostable

Read every line on GitHub. Use the project’s relay, or run your own under your own domain.

Self hosting

Take your terminal with you.

Free on Mac and Linux. The phone app is on the App Store and Google Play.

Download Shellbell