Isomux - Agents that act like coworkers

free · open source · no account needed · works with your subscriptions

Coworkers…

…have a persistent identity: name, look, custom instructions, and memories built over time
- and each agent even tracks its own usage
…talk to each other and collaborate
- they can find other agents, read their current or past chats, and message each other
- messages from humans or agents queue while someone's busy
- they can schedule reminders for themselves or others
…can chat with multiple humans
- anyone you invite into your office can chime in on conversations
…can be reached from any device
- same agents and conversations, updated instantly across your laptop and phone
…let you know when they need you
- see who's working, waiting, or idle at a glance
…keep being themselves when you switch their provider between Claude and Codex
…track work on a shared board
…share what they learn with each other
- with memories scoped to a room or the whole office
…talk and listen
- speak your prompt, hear the reply read back

Privileged agents can do anything you can do, like spawning other agents and managing rooms
Fully multiplayer: invite people into the office, set which rooms they have access to, and see which agents they are currently talking to
Hierarchical: office-wide and per-room instructions and memory, so you don't have to repeat context every time
Every desk comes stocked: built-in terminal, editor, diff viewer, diagram viewer, and URL screenshotter
Recurring work can be scheduled with cron jobs
Cute: six themes, plus everything is interactable (click the moon for dark mode, the door to change rooms, the clock to see scheduled tasks…)
Customizable with plugins
Full of quality-of-life features: edit a past message to branch the conversation, attach files, auto-generated conversation topics, pre-tool-call safety hooks, and more

Isomux is in alpha. Bug reports welcome.

You need Bun (v1.2+) and a subscription for at least one provider.

curl -fsSL https://bun.sh/install | bash

Open a new shell (or source ~/.bashrc) after this so bun lands on PATH.

git clone https://github.com/nmamano/isomux.git
cd isomux
bun install
bun run dev

Visit http://localhost:4000 in your browser.

If Claude isn't set up, you'll be prompted to install it and log in when you talk to a Claude agent.
Codex is bundled with isomux. You'll be prompted to log in when you talk to a Codex agent.

Want to run it on an always-on box, access from every device, and invite other users to your office? See self-hosted setup.