Alternatives to WinTweaks for all platforms with any license

CCleaner

Cleaner tool for your system - protects your privacy, makes your computer faster and more secure.
- Bundleware
  - The software tries to install Avast too - Spyware, runs in background and collects information to send to Avast. Background mode can be disabled, but gets re-enabled on each run - Shows pop-up system wide ads from time to time
Freemium Mac Windows Android Android Tablet
Optimal performance Portable Real-time monitoring System Cleanup ... System Cleanup Duplicate File Finder Software Uninstallers Add a feature

2632 Like
BleachBit

BleachBit deletes unnecessary files to free valuable disk space, maintain privacy, and remove junk. Rid your system of old clutter including cache, cookies, Internet...

Free Open Source Mac Windows Linux Blackberry PortableApps.com
Ad-free Cross-platform Works in a terminal System Cleanup ... Utilities that Delete Files Multiple languages Portable Privacy focused Selective Wipe Add a feature

500 Like
Glary Utilities

Easy, one-click access to a large array of cleaners and boosters to optimize PC and Android performance.
- Bundleware
  Be careful during the installation: https://alternativeto.net/discussions/applications/11718/be-careful-in-the-installation/
Freemium Windows Android
1-click maintenance System Cleanup Registry repairing Software Uninstallers ... Duplicate File Finder Utilities that Delete Files File Splitting Multiple languages Portable Real-time Junk Monitoring File Recovery Software Uninstallers Add a feature

350 Like
Sysinternals Suite

The Sysinternals Troubleshooting Utilities have been rolled up into a single Suite of tools. This file contains the individual troubleshooting tools and help files. It...

Free Windows
Configurable Portable System Info Add a feature

256 Like
Ultimate Windows Tweaker

Ultimate Windows Tweaker is a freeware Tweak UI Utility for tweaking and optimizing Windows. It can simply be downloaded and used as a portable application to customize...

Free Windows
Portable System Tweaker Windows 10 Add a feature

45 Like
AVG PC TuneUp

Make your old PC live longer — and your new PC run faster — with AVG TuneUp. Our PC optimizer comes with revamped Sleep Mode technology to boost your PC speed and...

Commercial Windows
1-click maintenance Battery Saving System Cleanup Duplicate File Finder ... Utilities that Delete Files Internet speed test File Recovery Registry repairing Software Uninstallers System Info Add a feature

147 Like
Advanced SystemCare

Advanced SystemCare, all-in-one PC optimization utility, specializes in ONE-Click solutions to detect, clean, repair, speed up and eventually protect PC. This...
- Bundleware
  The installer contains adwares. Be careful during the installation: https://alternativeto.net/discussions/applications/11718/be-careful-in-the-installation/
Freemium Windows
1-click maintenance System Cleanup Multiple languages Privacy focused ... Security focused Registry Cleaner Add a feature

105 Like
Click&Clean

Click&Clean is a free, fast and easy-to-use extension for Google Chrome and Mozilla Firefox that can...

Free Mac Windows Linux Chrome OS Chrome ... Waterfox Pale Moon Firefox
Browser extension Google Chrome Extensions System Cleanup Legacy Firefox Addon ... Security & Privacy Add a feature

28 Like
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Wise Care 365

Wise Care 365 is a bundle of important registry, disk, and other system utilities for your PC. Easy to use and effective, it is the best solution to improve your...

Freemium Windows
Integrated Virus scanner System Cleanup Add a feature

39 Like
Tweaks

Tweaks allows the adjustment of several advanced GNOME options that can't be configured in gnome-control-center.

Free Open Source Linux
Configurable Add a feature

12 Like