7 Best Free CCleaner Alternatives for Windows 11 & 10
Seven tools that clean, uninstall or map disk space without a subscription - what each one is genuinely best at, and where it stops.
1. Deltempo - the closest like-for-like replacement
A portable, MIT open-source Windows utility that covers the whole job in one executable: 26+ cleanup scopes (system temp, GPU shader caches, browser and developer caches), a deep root uninstaller with leftover sweeping, a byte-level duplicate file finder, an interactive treemap disk analyzer, large-file hunting, system repair tools and native NT memory trimming.
- Best for: replacing a cleaning suite entirely - cleaning, uninstalling and disk analysis in one tool.
- Privacy: zero telemetry, no account, no ads, no installer. It also refuses load-bearing paths such as MSI source caches and credential stores by policy.
- Limit: Windows only, community supported. See the full CCleaner vs Deltempo comparison.
Disclosure: Deltempo is built by the maintainers of this site. Every claim above is verifiable in the public source repository.
2. BleachBit - minimal, GPL, Windows and Linux
The long-standing open-source cache cleaner. GPLv3, local-only, with a clean simple UI and a scripting console for unattended runs.
- Best for: Linux users and anyone who wants the smallest possible cache cleaner.
- Limit: no uninstaller, no duplicate finder, no memory optimizer and no GPU shader cache handling.
3. Bulk Crap Uninstaller - the uninstall specialist
Apache 2.0, built for removing many applications at once, including broken ones whose own uninstaller no longer runs.
- Best for: bulk removal, bloatware sweeps and forcing out corrupt installs.
- Limit: it does not clean caches or analyze disk usage - it is an uninstaller only.
4. Windows Storage Sense - the built-in option
Ships with Windows 10 and 11. Runs on a schedule, empties the Recycle Bin on age and clears temporary files without you opening anything.
- Best for: hands-off maintenance with zero extra software.
- Limit: narrow scope, no uninstaller, no duplicate detection, no visibility into what it reclaimed.
5. WinDirStat - the classic disk usage map
Free and open source, and still the reference treemap disk usage viewer for Windows: it shows exactly which folders are eating the drive.
- Best for: one-off "what is filling my disk" investigations.
- Limit: analysis only - it never deletes anything for you, and the interface has not changed in years.
6. WizTree - the fastest space scanner
Reads the NTFS Master File Table directly, so it enumerates an entire drive in seconds rather than minutes. Free, with its own licence terms for commercial use.
- Best for: very large drives where speed matters more than anything else.
- Limit: NTFS-focused, not open source, and it is an analyzer rather than a cleaner.
7. Revo Uninstaller Free - uninstall with a leftover scan
Freeware that runs an application's own uninstaller first, then hunts for registry keys and folders it left behind.
- Best for: removing a single program and verifying nothing obvious remains.
- Limit: free edition is feature-limited compared with its paid tiers, and it does not do cache cleaning.
How this list was built: each entry is described from its own project's public documentation. Licences and feature sets change - confirm details with the vendor before relying on them. Third-party names are trademarks of their respective owners.