GrandPerspective

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WinDirStat

TreeSize is a disk space manager for Windows. The application is used by over 100,000 people to identify where storage space is going. TreeSize provides a visual representation of your harddrive, and tools to clean up unwanted files to increase overall storage space.

With CCleaner you can speed up your slow Mac or PC by cleaning up outdated software and cached files. CCleaner has been the go-to software for protecting and cleaning Windows computers for years. The software was built at a time when Microsoft Windows lacked many of the built-in security features found in operating systems like macOS or Linux. CCleaner can be used to clean potentially unwanted files and invalid Windows Registry entries from a computer. In 2012 CCleaner released a version for macOS.

A user-friendly problem fixer for macOS. With CleanMyMac X you can delete system junk, unwanted apps, malware, and tune your macOS operating system for maximum performance. On average CleanMyMac X cleans 74GB of hard-drive space, which instead can be used for storing music, movies or photos that are dear to you.

DaisyDisk is a freemium disk analyzer application for macOS. With DaisyDisk you can visualizes hard disk usage and get a broad overview on how to free up hard disk space. Through an intuitive interface with an interactive sunburst chart that you can use to easily navigate your hard disk, and free up space by deleting large files that you don't use.

TreeSize is a disk space manager for Windows. The application is used by over 100,000 people to identify where storage space is going. TreeSize provides a visual representation of your harddrive, and tools to clean up unwanted files to increase overall storage space.