Terminal multiplexer · built for agents

A warm place
for all your
terminals.

Muxie is a terminal multiplexer with durable sessions — tabs and splits that survive disconnects, native sprites.dev cloud boxes, and a workspace built for running coding agents.

Linux macOS Windows v0.5.2 · free & open
Nested splits Durable sessions Reattach with full color sprites.dev Real port forwarding Agent status Spawn from the CLI worktty · Ghostty in WASM
One window, three ideas

Multiplex. Persist. Automate.

A terminal multiplexer that keeps every session alive, reaches into sprites.dev cloud boxes, and is built from the ground up for agents.

Multiplex everything

One window holds every terminal you've got. Tabs plus nested horizontal and vertical splits — slice any direction, drag to rebalance, save the layout.

Durable sessions

A bundled daemon keeps every session alive on the far side. Drop the network or close the lid, then reattach later with full color and scrollback intact.

sprites.dev, native

Open a sprites.dev cloud box as easily as a local tab — durable reattach, real port forwarding, and remote open & clipboard tunneled back home.

Built for agents

Run Claude, Codex, or any coding agent in a pane. Muxie reads the screen for working / blocked / done, recaps the thread, and spawns agents from the CLI.

Powered by worktty

Every terminal renders on worktty — Ghostty's terminal core compiled to WebAssembly, off the main thread, so the UI stays smooth under a firehose of output.

Command palette & find

⌘K to jump anywhere — tabs, panes, sessions, settings. Search scrollback with live highlighting and clickable file paths.

Not a mockup

This is the real thing.

A live Muxie window — warm-dark theme, durable sessions in the sidebar, split panes, an agent reporting in. Captured, not illustrated.

muxie — workspace
A real Muxie window showing the warm-dark theme, split terminal panes, the right-edge activity rail, and an agent session.
Durable sessions

Your terminals don't die.

Every tab and split runs through a daemon that lives on the other side — local, over SSH, or on a sprites.dev box. Lose the train tunnel, close the lid, come back hours later: Muxie reattaches with the full screen, colors and scrollback intact.

  • Bundled durable daemon, on every side
  • Auto-reconnect when the link drops
  • Native sprites.dev cloud boxes
  • Real port forwarding over the session
How sessions stay alive
connections
ssh · vault durable · 14:02
sprites.dev · 7af2 3 ports ⇡
ssh · edge-1 reattach
ssh · build-box offline
Agentic workflow

Built around your agents.

Coding agents think for minutes, then suddenly need an answer. Muxie watches every pane and tells you which agents are working, which are blocked, and which are done — then hands you a recap so you can jump straight back in. Orchestrate a whole fleet from the CLI.

  • Working / blocked / done, per pane
  • One-line recap to catch up fast
  • Detection local, over SSH, and on sprites
  • Spawn & orchestrate agents from the CLI
The agentic workflow
refactor terminal seam working
migrate config store blocked
add OSC 52 clipboard done

2 agents working · 1 needs you

Make it yours

Wears whatever you like.

Warm brand themes out of the box, plus any accent, any font, and a mascot who's always around — waving, dozing, or facepalming when the build breaks.

Warm dark
Cream
Mocha
OLED
Neutral
hello
idle
asleep
oops

Give your terminals a home.

A terminal multiplexer that keeps your sessions alive, speaks sprites.dev, and keeps your agents in view. Free, open source, cross-platform.