Performance during development.
Atlas is available for preorder. No public alpha or downloadable build is available yet.
Startup and memory
The homepage lists a 150 ms cold startup target and a project-supplied 50 MB reference RAM footprint. These are not reproducible measurements of a released build. Memory depends on the folders, previews, and panes open.
Historical copy tests
The comparison uses an internal cached local Windows API test from July 10, 2026, with three runs per case and the median reported. It is not a timed run through File Explorer or a current speed guarantee. Results vary by hardware and workload.
Source availability
Atlas is open source under AGPL-3.0-or-later. The source code is on GitHub.
Ready to master your files?
Support Atlas while it is in development. Preorder a lifetime license, or wait for the free public alpha.
Preorder Atlas for WindowsAtlas
A file manager built with Rust and GPUI, currently in development. The alpha is free, and the source is open under AGPL-3.0-or-later.