PC Cleaner – free, open source junk cleaner for Windows
Remove temp files, browser caches, the recycle bin and more with one click – while your passwords, history and files in use stay completely safe. Free, private and open source.
Free forever | Open source (MIT) | No tracking, no ads | Windows 10/11
Everything a cleaner should be
Built with Python, reviewed by the community and free to use – no ‘pro’ tier hiding the good stuff.
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One-click cleanup
Click once and junk is gone. No wizards, no checkboxes, no waiting around.
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Protects what matters
Passwords, browsing history and files currently in use are never touched – by design.
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100% Python, 100% open
MIT licensed. Read every line of code and see exactly what it does on your PC.
What it cleans
Just the junk that slows your PC down – nothing else.
- Temporary files (TEMP)
- Recycle Bin
- Browser caches
- Thumbnail cache
- Windows Update cache
- Prefetch
- Recent files list
- Crash dumps & WER reports
- DNS cache
- Old Windows installations
Why you can trust it
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Truly open source
MIT licensed on GitHub. Anyone can audit it – there is nothing hidden.
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Private by design
Nothing is sent anywhere. Everything happens on your machine, offline.
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Safe by default
Files in use and everything you care about are automatically protected.
Frequently asked questions
Is PC Cleaner really free?
Yes. PC Cleaner is free forever and open source under the MIT license. There is no premium tier and no paid features.
Will it delete my passwords or browsing history?
No – never. Protecting your passwords, history and any file that is currently in use is a core part of how the tool is built.
Does it need administrator rights?
It works without them, but running it as administrator lets it clean everything, including protected system caches.
Which Windows versions are supported?
Windows 10 and Windows 11 are fully supported.
How is this different from CCleaner?
PC Cleaner is free, open source, contains no ads and no bundled software – and it never touches your passwords or history.
Get a cleaner PC in one click
Download the .exe, run it, click Clean. That is all.
Looking for live system stats? Check out System Monitor – live CPU, RAM, network and temperature in your tray.