Desktop app
Atrium
The agent workspace that adapts to you
Atrium is a local-first macOS workspace app for running many AI coding agents in parallel (up to 49), organizing agent sessions, terminals, editors, and browsers into tiled, room-based mosaics that persist across crashes and reboots. It orchestrates work through tasks isolated in git worktrees, an activity sidebar showing every agent's status across workspaces, and a built-in CLI with JSON output that agents themselves can script to spawn and message each other. All workspace data stays on disk and users bring their own model accounts.
What people say
“I use atrium and I freaking love it. Saving workspaces and resuming sessions (and finding ones from weeks ago) is insane and I don't think I can live without it anymore.”
MangoPescalito
“we just committed twice as many PRs today as literally any other day before atrium, it's honestly genius.”
Rob
Quotes are curated from public posts and link to the original where available.
FAQ
- Is Atrium free?
- Yes — Atrium is free to use. Free during early access.
- Which coding agents does Atrium support?
- Atrium works with Claude Code, Codex, Gemini CLI, Cursor, Antigravity, OpenCode and Pi.
- What platforms does Atrium run on?
- Atrium runs on macOS.
- Is Atrium open source?
- No — Atrium is closed source.
