CCleaner Alternatives
One of the most well known hard drive cleaning utilities out there, CCleaner has earned its reputation from being free and easy to operate, with clear indications of what's being deleted and how much free space your hard drive is set to gain from the process.
A highly recommended Windows and Linux alternative to CCleaner by our community can be found in 
BleachBit, which is also open source and purported to be more thorough. Of course, there are many other alternatives for Windows, Linux, and macOS, as well as available on the App Store and Google Play Store.
- Extremely fast duplicate file finder for Windows, Mac & Linux.
- Make your PC live longer and run faster Boost your PC speed, free up disk space by removing bloatware and junk files, and solve small issues before they become big problems. See how it works. Speed up, tune up, and revive your PC
- Disk Cleanup is a computer maintenance utility included in Microsoft Windows designed to free up disk space on a computer's hard drive. The utility first searches and analyzes the hard drive for files that are no longer of any use, and then removes the unnecessary files.
- Versatile and portable software designed to clean, tweak and optimize Windows. It's extremely fast and rich with features.
- Clean Doctor is a cleaner app to help you better manage your iPhone/iPad while saving storage, including clear duplicate photos, clear large size videos, duplicate contacts scanner, etc.
- AppleJack is a user friendly troubleshooting assistant for Mac OS X. With AppleJack you can troubleshoot a computer even if you can't load the GUI, or don't have a startup CD handy. AppleJack runs in Single User Mode and is menu-based for ease of use.
Discontinued
This project has not had an updated release since about 2010, and does not work on macOS Catalina
- Clean Space is a professional utility for cleaning up your computer from garbage and protecting your online privacy. It will also protect your online privacy by cleaning up areas related to your internet browsing history.
- Duplicate Media Finder locates and deletes identical files and similar media (Photos, music, videos) on your PC smartphones (Android, iPhone, ...) or cloud.
- Ace Utilities is an award winning collection of tools to optimize your PC's performance. With Ace Utilities you can... * Remove unneeded files from your disk and regain disk space. * Remove erroneous entries from Windows registry.
- Little Disk Cleaner is an open source (GPLv3) program written in C# that will remove any unneeded files to free up extra hard drive space and make windows run faster.
Discontinued
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