What is Atrium?
Atrium is a calm, single-window cockpit for everything you run while building software: coding agents (Claude Code, Codex, …), terminals, and dev servers — organized into projects, all visible at a glance. It’s a native desktop app (Tauri 2 + React + xterm.js), built for Windows + WSL2 and macOS.
The one-sentence version
Section titled “The one-sentence version”Atrium organizes what’s running; it doesn’t run the work for you.
You launch the agents and commands; Atrium keeps them in one quiet place, shows you their live state, and stays out of the way.
What it’s for
Section titled “What it’s for”- Stop alt-tabbing across terminal windows. Projects → groups → panes, each a live terminal that stays alive when you switch away. Sessions restore when you reopen — Claude panes resume the exact conversation.
- Give your agents eyes. An opt-in local MCP server — no cloud, no port — lets an agent in one pane ask what else is running, read a sibling pane’s logs, and check git/worktree state, so it can explain a crashed dev server without you pasting the trace. Visibility in, never control out: there’s no tool to spawn, run, or restart anything.
- Know what’s happening without staring. A status orb per pane (solid while running, pulsing while working, breathing when an agent needs your input), the live working directory + git branch, and context-window usage % on Claude panes.
- See every project at once. A dashboard with each project’s live status, plus an attention rail that surfaces crashed or waiting panes even from background projects.
- Work across git worktrees. A worktrees lens over the sidebar —
including an
Idle · Nladder of pane-less worktrees, so the sidebar shows every worktree (0.15.0) — full create/remove/prune lifecycle from the UI, and a per-worktree cockpit view — built for running parallel agents on parallel branches. - Keep your personal agents somewhere. Home — a pinned, non-repo place for long-lived launchers (a personal assistant, a journal) that never belonged in a project list.
- Jump anywhere. The Switcher (
Ctrl+Shift+K/⌘⇧K) fuzzy-jumps to any pane, project, worktree, or view across everything you have open.
What it is not
Section titled “What it is not”Atrium is deliberately not an orchestrator. It won’t dispatch agents, run a meta-agent, or drive work across projects on its own. The autonomy is the agent’s; the trigger is always yours. That boundary — visibility-in, never control-out — is a hard architectural line, not a setting (see Core concepts).
The crowded 2026 lane is multi-agent orchestration. Atrium’s lane is the quieter, more durable one: the calm cockpit + cross-agent awareness + shared memory — including, on Windows, across the WSL boundary that other tools don’t cross. On macOS there’s no such boundary; the same cockpit just drives your native shell directly.
Free and Pro
Section titled “Free and Pro”Atrium’s full local organizer — everything described in these docs unless marked Pro — is
free, no caps, no nags. Atrium Pro ($39 one-time, every 1.x update included forever) adds the
augmentation layer: GitHub + Jira integrations with a
per-project Integration Hub and a cross-project My Work view (read-only, always),
SSH remote projects over your own ssh + tmux, background
monitoring + focus-aware desktop notifications, session-history search, named workspaces,
Switcher action verbs, and per-worktree runtime vars.
Compare the full line on Free vs. Pro, or buy Pro directly — checkout is handled by Polar (merchant of record), and the key arrives by email.