Best Free Alternatives to CCleaner
Updated 3 October 2026 · 1 program compared
CCleaner is a popular PC cleaner, but many of its tools are only in the paid version and the installer may offer extra software. These free tools remove junk files and browser data to free up disk space, with no ads or upsells.
Quick answer
- BleachBit – free, open-source cleaner with no ads, plus file shredding
- Windows Disk Cleanup / Storage Sense – built into Windows, nothing to install
Comparison at a glance
| Software | Price | Runs on | Best for |
|---|---|---|---|
| BleachBit | Free | Windows, Linux | Completely free junk-file and privacy cleaning |
#1 · COMPLETELY FREE JUNK-FILE AND PRIVACY CLEANING
BleachBit
Free Windows, Linux
BleachBit removes cache, temporary files, logs and browser data, and can shred files and wipe free space – all for free.
Good
- Free and open source
- No ads or paid upgrades
- File shredding and free-space wiping
Keep in mind
- Simple, plain interface
- No official macOS version
Frequently asked questions
Is CCleaner free?
CCleaner has a free version with basic cleaning. Advanced features such as scheduled cleaning and updaters require a paid plan.
What is the best free alternative to CCleaner?
BleachBit is the best fully free alternative: it is open source, has no ads or upsells, and adds file shredding and free-space wiping.
Does Windows have a built-in cleaner?
Yes. Windows includes Disk Cleanup and Storage Sense, which can remove temporary files and empty the Recycle Bin automatically.
Should I use a registry cleaner?
Registry cleaners rarely improve performance and can cause problems. Cleaning junk files and managing startup programs is usually enough.