Alternatives to MacBooster for all platforms with any license

CCleaner

Cleaner tool for your system - protects your privacy, makes your computer faster and more secure.
- Bundleware - The software tries to install Avast too - Spyware, runs in background and collects information to send to Avast. Background mode can be disabled, but gets re-enabled on each run - Shows pop-up system wide ads from time to time
Freemium Mac Windows Android Android Tablet
Duplicate File Finder Portable Real-time monitoring Software Uninstallers Add a feature

2567 Like
BleachBit

BleachBit deletes unnecessary files to free valuable disk space, maintain privacy, and remove junk. Rid your system of old clutter including cache, cookies, Internet...

Free Open Source Mac Windows Linux Blackberry PortableApps.com
Multiple languages Portable Selective Wipe Add a feature

381 Like
Sysinternals Suite

The Sysinternals Troubleshooting Utilities have been rolled up into a single Suite of tools. This file contains the individual troubleshooting tools and help files. It...

Free Windows
Portable System Info Add a feature

241 Like
Glary Utilities

Glary Utilities offers numerous powerful and easy-to-use system tools and utilities to fix, speed up, maintain and protect your PC. It provides in 23 languages...
- Bundleware Be careful during the installation: https://alternativeto.net/discussions/applications/11718/be-careful-in-the-installation/
Freemium Windows Android
Duplicate File Finder Utilities that Delete Files File Splitting Multiple languages ... Portable Real-time Junk Monitoring File Recovery Registry repairing Add a feature

324 Like
dupeGuru

dupeGuru is a free and open source tool to find duplicate files on your computer. It can scan either filenames or contents. The filename scan features a fuzzy matching...
- Discontinued The project is currently unmaintained. Last version, 4.0.3, released in November 2016, can be still downloaded from the official website and Github.
Free Open Source Mac Windows Linux
Duplicate File Finder Find duplicated files Local based GUI Support for Hotkeys Add a feature

81 Like
CleanMyMac X

CleanMyMac scans every inch of your system and safely removes gigabytes of junk in just two clicks. Free up storage on your Mac and boost its performance — CleanMyMac...

Commercial $ $ $ Mac
Growl integration Maintenance scripts Multiple languages Software Uninstallers Add a feature

111 Like
Clean Master

Clean Master is an all-in-one cleaner app on Android for cleaning app cache, unused files, residual files, search history and uninstalling apps. With this apps user can...

Freemium $ $ $ Windows Android Android Tablet
Multiple languages File Recovery Registry Cleaner Add a feature

106 Like
SD Maid

File manager, search tool, removes orphaned files, freeze/reset/remove apps, optimize databases, find big files.

Freemium Android Android Tablet
Duplicate File Finder Root required Add a feature

36 Like
AVG PC TuneUp

Peak performance for your PC. Keeps it going for longer. - More Speed Turbo Mode Switches off unnecessary features to release more power Program Deactivator ...

Commercial Windows
Duplicate File Finder Utilities that Delete Files File Recovery Registry repairing ... System Info Add a feature

144 Like
Wise Disk Cleaner

Free Disk Cleaner and Defragmenter Clean junks of Browsers, remove junk and useless files of Windows and Defragment your disk.

Free Windows PortableApps.com
Portable Add a feature

33 Like
Click&Clean

Click&Clean is a free, fast and easy-to-use extension for Google Chrome and Mozilla Firefox that can...

Free Mac Windows Linux Chrome OS Chrome ... Waterfox Pale Moon Firefox
Google Chrome extension Legacy Firefox Addon Add a feature

29 Like
Mem Reduct

Mem Reduct is a small application that allows you to monitor and clean your computers memory. Exempt system cache, modified, and idle memory pages. As a result of the...

Free Open Source Windows
Portable Add a feature

21 Like
System Mechanic

System Mechanic automatically repairs errors and fragmentation, cleans out clutter, and tunes up your PC -- so that it runs smoothly, reliably, and up to 300% faster!...

Commercial $ $ $ Windows
No features added Add a feature

29 Like
Wise Care 365

Wise Care 365 is a bundle of important registry, disk, and other system utilities for your PC. Easy to use and effective, it is the best solution to improve your...

Freemium Windows
No features added Add a feature

35 Like
TinkerTool

TinkerTool is an application that gives you access to additional preference settings Apple has built into Mac OS X. This allows to activate hidden features in the...

Free Mac
No features added Add a feature

17 Like