Alternatives to SKTools 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
Duplicate File Finder Portable Real-time monitoring Software Uninstallers Add a feature

2567 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
Multiple languages Portable Selective Wipe Add a feature

381 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
Portable System Info Add a feature

241 Like
Glary Utilities

Glary Utilities offers numerous powerful and easy-to-use system tools and utilities to fix, speed up, maintain and protect your PC. It provides in 23 languages...
- Bundleware Be careful during the installation: https://alternativeto.net/discussions/applications/11718/be-careful-in-the-installation/
Freemium Windows Android
Duplicate File Finder Utilities that Delete Files File Splitting Multiple languages ... Portable Real-time Junk Monitoring File Recovery Registry repairing Add a feature

324 Like
CleanMyMac X

CleanMyMac scans every inch of your system and safely removes gigabytes of junk in just two clicks. Free up storage on your Mac and boost its performance — CleanMyMac...

Commercial $ $ $ Mac
Growl integration Maintenance scripts Multiple languages Software Uninstallers Add a feature

111 Like
Clean Master

Clean Master is an all-in-one cleaner app on Android for cleaning app cache, unused files, residual files, search history and uninstalling apps. With this apps user can...

Freemium $ $ $ Windows Android Android Tablet
Multiple languages File Recovery Registry Cleaner Add a feature

106 Like
SD Maid

File manager, search tool, removes orphaned files, freeze/reset/remove apps, optimize databases, find big files.

Freemium Android Android Tablet
Duplicate File Finder Root required Add a feature

36 Like
AVG PC TuneUp

Peak performance for your PC. Keeps it going for longer. - More Speed Turbo Mode Switches off unnecessary features to release more power Program Deactivator ...

Commercial Windows
Duplicate File Finder Utilities that Delete Files File Recovery Registry repairing ... System Info Add a feature

144 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 Add a feature

40 Like
Wise Registry Cleaner

Registry Cleaner and Optimizer. Clean registry junks, repair Windows errors, and keep your PC at peak performance. .
- Bundleware The installation may contain adwares. Be careful during the installation: https://alternativeto.net/discussions/applications/11718/be-careful-in-the-installation/
Free Windows PortableApps.com
Portable Add a feature

59 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
Multiple languages Privacy focused Security focused Registry Cleaner Add a feature

99 Like
Windows Repair Toolbox

Windows Repair Toolbox is a software created to help you repair a Windows system, by making the process faster, easier and uniform. Features: - Download and run...

Free Windows
Custom applications Duplicate File Finder Software Uninstallers Add a feature

18 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
Google Chrome extension Legacy Firefox Addon Add a feature

29 Like
Tweaking.com - Windows Repair

Tweaking.com - Windows Repair is a tool designed help fix a large majority of known Windows problems including; registry errors, file permissions, issues with Internet...

Freemium $ $ $ Windows
Portable Registry repairing Sits in the System Tray Add a feature

19 Like
System Mechanic

System Mechanic automatically repairs errors and fragmentation, cleans out clutter, and tunes up your PC -- so that it runs smoothly, reliably, and up to 300% faster!...

Commercial $ $ $ Windows
No features added Add a feature

29 Like