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System Ninja

A software solution that will help you optimize and improve your operating system

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System Ninja screenshotSystem Ninja is a powerful and highly efficient application that will allow you to improve your computer performance by optimizing your Widows operating system. This small tool will help you fix system problems, quickly remove unnecessary files and easily improve system speed.

System Ninja benefits from a powerful and unique dual cleaning engine which will identify and remove junk files from your hard drives, allowing you to save precious space and improve your computer's performance. It also integrates an efficient startup manager which will empower you to decide what programs are allowed (or not) to run every time when your computer is turned on.

System Ninja is also able to manage or remove multiple processes that are running on your computer. The application uses the Winapp2.ini cleaning routines, supporting more than 1000 additional programs.

System Ninja is a multilingual application, being available in several languages, such as: English, Swedish, Vietnamese, Dutch, Spanish, German, Russian, Polish, Italian, French and Brazilian.


  • Easy to use program.
  • Finds junk that other software miss.


  • Doesn't back up before deleting.
  • Not as full-featured as other similar tools.
Name System Ninja
Developer | see all products from this developer
Product Homepage System Ninja
License Free (Freeware)
Last Week Downloads 8
All Time Downloads 6,116
Filename ninja-setup-3.2.9.exe
Filesize 3.6MB
MD5 Checksum 27517AA39D20F0668445DD472B2E8049
OS Support Windows All
Category Utilities

100% CLEAN Certification

BadgeSystem Ninja has been tested by team against viruses, spyware, adware, trojan, backdoors and was found to be 100% clean. Our editors will recheck this software periodically to assure that it remains clean.


Old Versions

Software Date Added
System Ninja March 22, 2021 - Latest Version
System Ninja August 26, 2019
System Ninja January 25, 2019
System Ninja October 27, 2018
System Ninja August 21, 2018

Download the free System Ninja