Compare software

AltTab vs Overview: catalog facts
AltTab	Overview
Free The software is free under its open-source licence. Hosting, hardware and external…	Free Free and open source, supported by GitHub Sponsors.
macOS	macOS
It switches between individual windows with live thumbnail previews instead of macOS's application-level switcher, with…	Live previews of any app with configurable frame rates Quick switching by click or keyboard shortcut
It needs screen recording and accessibility permissions, and thumbnail previews cost some memory on a busy desktop.	Still in beta macOS only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.