OpenMacApps

Boost

Free menu bar app for memory and disk: see what uses RAM, pause idle apps, find large files and uninstall apps cleanly.

GPL-3.0 · Free download · Downloads from github.com

License
GPL-3.0
Open source
Category
Utilities
Source
GitHub
Kernel-Hunter
Verified
2026

About Boost

Boost is a menu bar app for memory and disk. It shows memory pressure and the apps using the most RAM, and it can pause an app so the app stops using CPU without quitting. It also lists large files and the caches that developer tools rebuild, such as Homebrew, npm and Xcode DerivedData. Its uninstaller lists leftovers before anything moves and offers Undo. It is aimed at Mac users who want these tools without a subscription; the project says nothing is behind a paid tier today.

Requires macOS 14 or later, as one universal binary for Apple silicon and Intel. The release is not notarized; the README says notarizing needs a paid Apple Developer account, so macOS stops the first launch. Allow it under System Settings › Privacy & Security. Boost has no analytics. Its only network request is an update check, which you can turn off in Settings.

Information

Source code
Kernel-Hunter/boost
License
GPL-3.0
Website
kernel-hunter.github.io
Download
github.com
Category
Utilities
Alternative to
AppCleaner, CleanMyMac, iStat Menus
Topics
App uninstallers, Disk cleaners, Menu bar apps
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