CCleaner

Revo Uninstaller

Revo Uninstaller is a Windows program-removal utility from VS Revo Group that goes beyond the built-in Windows uninstaller. It first runs a program's own uninstaller, then performs an advanced scan of the file system and registry to find and delete leftover files, folders, and registry keys that standard uninstalls leave behind. It also bundles tools like Autorun Manager, Junk Files Cleaner, Browsers Cleaner, MS Office Cleaner, Windows Cleaner, Evidence Remover, and Unrecoverable Delete for broader system cleanup.

Glary Utilities

Glary Utilities is a suite of tools designed to optimize and maintain computer systems. It offers a range of features to help users improve their computer's performance, fix errors, and protect their data.

MacKeeper

MacKeeper is a Mac utility suite from Clario Tech that combines system cleaning, malware and adware removal, and performance optimization in one app. It scans for and removes junk files and duplicates, monitors for malware with an AV-TEST certified engine, and includes an ad blocker and identity theft monitoring. The app is Apple-notarized and requires macOS 10.15 or later, and it reports over 60 million downloads to date. A limited free tier offers a RAM cleaner and a one-time malware scan, while the full version, which unlocks all cleaning, security, and privacy tools plus 24/7 chat support, starts at $10.95 per month.

CleanMyMac

CleanMyMac, made by MacPaw, is a Mac maintenance utility that scans for junk files, unused apps, and duplicates to free up storage and improve system performance. It also includes anti-malware scanning, background app management, and hard drive visualization to help users see exactly what's taking up space. Beyond cleanup, CleanMyMac handles complete app uninstalls (removing leftover files most uninstalls miss), cloud storage cleanup, and duplicate file detection. It's Apple-notarized software with over 29 million downloads and 18 years of Mac-focused development since 2008.

BleachBit

BleachBit is a free, open-source system cleaning utility for Windows and Linux that removes temporary files, cache, logs, and leftover application data to free up disk space. It also offers secure deletion modes for erasing browsing history, cookies, and other sensitive traces so they cannot be easily recovered. Beyond the graphical interface, BleachBit supports command-line and scripted operation for automation, and advanced users can write custom CleanerML rules to target specific applications or file types not covered out of the box.

Win11Debloat

Win11Debloat is a simple, lightweight PowerShell script that allows you to remove pre-installed apps, disable telemetry, and perform various other changes to declutter and customize your Windows experience. It works for both Windows 10 and Windows 11, providing a convenient way to take control of your operating system.