About System Ninja
A fast junk cleaner and startup manager for gamers.
System Ninja is a utilities app for Windows that focuses on doing its job well, without getting in your way. It ships with quick junk scan and startup manager, and everything is a click away from the moment you open it.
Grab the newest System Ninja build for Windows here in one click, with no ads and no registration.
Key features
- ✓Quick junk scan
- ✓Startup manager
- ✓Process manager
- ✓Plugins
Requirements
Windows 10 / 11, 64-bit
System Ninja — frequently asked questions
Is System Ninja free to download?+
System Ninja is free to download, with optional paid features (freemium).
Is System Ninja safe to download?+
Yes. HivApps links to the latest System Ninja build and keeps listings clean, with no bundled extras. As always, keep your antivirus on and only install software you trust.
What is the latest version of System Ninja?+
The latest version listed here is System Ninja 4.0, updated Aug 5, 2026.
What do I need to run System Ninja?+
Windows 10 / 11, 64-bit
How do I install System Ninja on Windows?+
Click the Download button on this page, run the installer once it finishes downloading, and follow the on-screen setup steps.
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Latest version (4.0) · Safe & clean