Otter Beam EN

Your agents, files and apps, on any device

Claude Code, Codex and your other agents keep running on your computer. Pick them up from your phone, tablet or browser.

Works with the agents you already use

  • Claude Code
  • Codex
  • Grok Build
  • Pi
  • Oh My Pi
  • Antigravity

Agents

Every agent chat, in your pocket.

Start or resume Claude Code, Codex and more. Follow along as a chat or in the real terminal, reply by voice, and get a notification when an agent needs you.

Otter Beam on a computer: projects on the left, their chats in the middle and the conversation on the right.

Files

Your files, editable anywhere.

Browse your computer and open .docx, .xlsx, .pptx, .md or code files. Edits save straight back to your computer.

A phone browsing a folder of Markdown files on the computer.

Apps

Any app window, on any screen.

Watch one window or the whole screen, or add an extra display sized to your phone, foldable or tablet. Tap or type to take control.

A phone showing an app window mirrored from the computer.

How it works

Up and running in three steps.

  1. Install on your computer

    A Mac, a Windows PC or a Linux machine. This is where your agents run.

  2. Sign in and approve your devices

    Approve each new phone, tablet or browser from a device you’ve already signed in on.

  3. Open anything, from anywhere

    Chats, files and app windows. Your work keeps running on your computer when you disconnect.

Security & privacy

Your keys. Your computer. Your work.

Every device approved from one you trust

No passwords to copy, no keys to paste. Review or remove devices anytime in Profile → Devices.

Direct on your network, Otter Relay when away

No port forwarding, public IP or tunnel to set up.

End-to-end encrypted

Encryption keys stay on your devices. We never receive them.

Coming soon · early November 2026

Bring your team — keep control.

Your data stays on your own computers.

Shared projects, four roles

  • Owner
  • Manager
  • Editor
  • Viewer
A team group chat inside an Otter Beam project.

Machine control, granted separately

To a named teammate, for a time window or for one task. A project role alone never gives access to your computer.

Diagram: project roles Owner, Manager, Editor and Viewer on one side; control of the computer granted separately by the owner.

For enterprises

The FDE platform — connecting Forward Deployed Engineers with enterprises

Plans

Free to start. Go further with a plan.

Otter Beam Pro and Premium subscriptions add:

Pro

  • 200 voice-transcription minutes a month
  • Otter Relay sessions up to 4 hours

Premium

  • 500 voice-transcription minutes a month
  • Otter Relay sessions up to 7 days

Plans don’t limit direct connections on your own network. Pricing, billing frequency and automatic-renewal terms are shown before purchase and governed by the Terms of Service. Manage or cancel in the store you bought from; purchases restore from the Plan screen.

FAQ

Questions

Anything else? Write to peter@otterd.com.

What is Otter Beam?

Otter Beam lets you use the AI agents, files and apps on your computers from a phone, a tablet, another computer or the web. Agents keep running in tmux on your computer, so disconnecting does not stop the work.

How do I use Claude Code or Codex from my phone?

Install Otter Beam on the computer where the agent runs, then open the same chat from the Android, iOS, desktop or web app. Read it as a chat or as the real terminal, and change model and permissions from there.

Does Otter Beam work away from my Wi-Fi?

Yes. On the same network your devices connect directly. Away from it, Otter Relay forwards the already-encrypted connection, so you need no public IP, port forwarding or tunnel.

Is Otter Beam end-to-end encrypted?

Yes. Device keys stay on your devices and are never uploaded. Otter Relay only passes along encrypted data and cannot read your commands, output or files.

What platforms does Otter Beam support?

Install Otter Beam on a Mac (macOS 11 or later), a Windows PC or a Linux computer, then connect from Android, iOS, another computer or the web. Chats, terminals and file editing work the same in the apps and in the browser.

Do I need to know tmux to use Otter Beam?

No. Agents run in tmux so they survive disconnects, but you never touch it: Otter Beam lists what is running, starts or resumes chats, and puts the agents waiting on your reply at the top.

Take your work with you.

Install it on your computer first, then open your work from a phone, tablet or browser.

Otter Beam on Linux

Four builds, one per kind of machine. Not sure which? uname -m prints x86_64 for Intel and AMD, aarch64 for 64-bit ARM.

  • .deb — x86_64 for Ubuntu 22.04 / 24.04 / 26.04 and Debian 13 on an Intel or AMD machine.
  • .deb — arm64 for those same distributions on a 64-bit ARM machine.
  • AppImage — x86_64 for every other distribution — Arch, Fedora, openSUSE, NixOS and the rest. One file, no package manager, nothing installed system-wide.
  • AppImage — arm64 for those same distributions on 64-bit ARM.

Install a .deb from the folder you downloaded it to:

sudo apt install ./otterbeam_*.deb

An AppImage just needs to be marked executable:

chmod +x OtterBeam-*.AppImage && ./OtterBeam-*.AppImage

An AppImage bundles Otter Beam's own libraries and borrows the rest from your desktop — GTK 3, GStreamer, PulseAudio, libsecret and Mesa. Any normal desktop install already has them. A minimal or server install may not; on Arch that is:

sudo pacman -S --needed gtk3 gst-plugins-base-libs libxtst libpulse libsecret mesa

Other distributions ship the same libraries under their own package names. You do not need FUSE: without it the AppImage unpacks itself and runs anyway.

Every build needs glibc 2.34 or newer, which means Ubuntu 22.04, Debian 12, Fedora 36 and RHEL 9 and up. Older releases, and distributions built on musl such as Alpine, cannot run it.

Updates arrive in the app itself — the Update button downloads, verifies and installs the same kind of build you are already running. You never come back to this page for a new version.

Verify any download against SHA256SUMS, its signature and our signing key.

Known limitations

  • No native notifications.
  • No in-app web preview.
  • Autostart needs systemd.
  • Passwordless auto-login can leave the desktop keyring locked — unlock it before signing in.

Otter Beam on Windows

Otter Beam for Windows is a portable zip for Windows 10 (2004 or later) and Windows 11 on x64 PCs. Unzip the whole folder anywhere you can write to, keep its files together, and open:

otterbeam.exe

Setup prepares the PC: it uses WSL 2, the Linux environment built into Windows, and turns on remote access over SSH so your phone and other computers can open terminals and coding agents there. Windows asks for administrator approval and may need to restart. If you only want to connect to your other computers, choose Use as client only.

The app is not code-signed yet, so Windows may show “Windows protected your PC” on first launch. Check that you downloaded it from otterd.com, then click More info → Run anyway. Don’t turn off Defender or your organisation’s policies to run it — tell us instead.

To update, quit Otter Beam from its tray icon, download the new zip and replace the folder. Your data stays in your AppData folder, not in the zip.

Known limitations

  • No notification click-through and no automatic return from the payment page.
  • No Windows push notifications after the app is closed.
  • Links open in your system browser; there is no in-app browser.
  • Office previews need the Microsoft Edge WebView2 Runtime, which Windows 11 includes.
  • The built-in Chinese/Japanese input engine is unavailable; use the Windows IME.
  • Opening an extra display is not available yet.

Report problems to peter@otterd.com with the build number (Profile → About) and, for connection issues, the text from Profile → Devices → Connection diagnostics → Copy.

Last updated: September 30, 2026

An Otter Beam account is required to link devices, and can be deleted from Profile → Account or the account deletion page. Reaching a computer requires installing and setting up Otter Beam on it.

Otter Beam is independent software and is not affiliated with or endorsed by any AI coding-agent provider.

Otter Beam is built by Otter Digital Pte. Ltd. in Singapore. Questions, bug reports and privacy requests go to peter@otterd.com — see the support page for what to include.

Otter Beam

Your computer agents, from any device.

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