AltTab
AltTab is a free, open-source desktop utility for macOS. AltTab brings Windows-style alt-tab window switching to macOS, with a preview of every open window. It has 16,455 GitHub stars and is released under the GPL-3.0 license. Its source code is on GitHub at lwouis/alt-tab-macos.
github.com/lwouis/alt-tab-macos (opens in a new tab)
Data as of from the GitHub API; description from the project's repository. Report an error
About AltTab
AltTab brings Windows-style alt-tab window switching to macOS, with a preview of every open window. Available for macOS. Released under the GPL-3.0 license on GitHub.
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Is AltTab free and open source?
Yes. AltTab's source code is public on GitHub under the GPL-3.0 license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.
How do I install AltTab?
Download the installer for macOS from its GitHub Releases page (latest: v11.10.1) or the project website.
Is AltTab still maintained?
The repository's most recent commit was on Oct 23, 2026. appsgit only lists apps whose repository had a commit in the last six months.