The best open source alternative to CCleaner is BleachBit. If that doesn't suit you, our users have ranked more than 50 alternatives to CCleaner and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to CCleaner are SD Maid SE, Mole, PureMac and Pearcleaner.
BleachBit deletes unnecessary files such as cache and cookies to enhance privacy and disk space efficiency on Linux and Windows. It supports numerous applications including web browsers, office suites, and multimedia tools.
![BleachBit user interface in dark mode [source: official documentation]](https://img.alternativeto.net/s/618x394/avif/bleachbit_608743_full.png)
SD Maid SE (aka SD Maid 2) is a file management tool for Android that specialises in maintenance. Its core purpose is freeing up space and removing unwanted data.
Open source Mac command line utility integrating disk cleanup, deep app uninstallation with artifact removal, disk analysis, optimization tasks, and a live terminal dashboard for real-time CPU, GPU, memory, disk, and network monitoring with interactive options.
Free, open-source macOS cleaner. CleanMyMac alternative with zero telemetry. Native SwiftUI, scheduled auto-cleaning, Xcode/Homebrew/system cache cleanup. MIT licensed.
An open-source mac app cleaner inspired by Freemacsoft's AppCleaner and Sun Knudsen's Privacy Guides post on his app-cleaner script. This project was born out of wanting to learn more. There's probably parts of the code that could be done better as I'm fairly new...
Tron is a collection of programs, tools, utilities, and Windows functions that are all scripted together. Those programs and such are designed to remove malware and bloatware, repair damaged operating systems, update old versions of very common applications, free up drive space...
Open-source Windows software offering more than 30 system tweaks spanning performance, privacy, GPU, power, bloatware, and user experience, with detailed risk ratings, automatic backups, one-click reverts, built-in management tools, and user-controlled settings.
The free system maintenance suite your PC deserves. 15+ powerful tools to clean, optimize, and protect your Windows, macOS, and Linux machines. Open source, no ads, no bloatware. Just a faster computer.
Comprehensive macOS utility featuring real-time monitoring of CPU, RAM, disk, and network, advanced automated cleaning, storage analysis with file visualization, duplicate management, file recovery, task automation, and a suite of optimization tools.
This is a toolset for improvement of performance of Windows desktop and server operating systems. Much gratitude goes to Ponderworthy folks and friends for much input, a good bit of which can be read at notes.ponderworthy.com.
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BleachBit is open source and does a thorough job of deleting various files that could reveal what you've been up to, from cookies to temporary files and other junk. It can't replace CCleaner on Mac, but on Windows and Linux it is arguably better and more trustworthy.