Best Sysinternals Suite Alternatives & Competitors in 2025

When your computer is getting full, BleachBit quickly frees disk space.

Open Source

CCleaner cleans, speeds up and frees up space on business endpoints.

The fastest AI note-taker to capture your scattered thoughts and turn them into organized notes.

Try for free freemium

The No. 1 Free, Powerful and All-in-one utility for cleaning your PC

Ultimate Windows Tweaker is a freeware Tweak UI Utility for tweaking and optimizing Windows.

DebugView is an application that lets you monitor debug output on your local system, or any...

Free optimization software & registry cleaner for Windows 10, 8, 7, Vista and XP. Advanced SystemCare Free to speed up PC, clean registry and repair system in one click.

Peak performance for your PC. Keeps it going for longer. - More Speed Turbo Mode

DebugView++ is a free software package similar to dbgview with extended functionality and in active...

Collection of more than 200 portable utilities from NirSoft

Is your internet or computer running slow? Auslogics BoostSpeed can help! This award-winning PC optimizer runs disk cleanup, defragments disks & registry, speeds up internet, and keeps your PC glitch-free. Don't let a sluggish computer hold you back.

freemium

opensource,antirootkit

Open Source

dconf is a low-level configuration system. Its main purpose is to provide a backend to GSettings on platforms that don't already have configuration storage system.

A set of more than 20 software utilities including but not limited to utilities that can help you...