4 FREE TOOLS
Quick checks for PCs, displays, and input devices
Test keyboards, mice, screens, file integrity, and browser-visible PC information without installation.
BEFORE YOU START
System
Browser-based diagnostics work only within information a browser can access. They can show input response, display patterns, and file hashes, but temperatures, SMART data, and malware require dedicated diagnostic software.
- Check keyboard and mouse input response
- Inspect pixels with full-screen colors
- Verify file hashes and browser-visible system data
TOOLS
Choose a System tool
Every tool includes inputs, an example, and result notes.
System
Keyboard & Mouse Tester
Check key presses, mouse buttons, wheel input, and pointer movement live.
Open tool →System
Monitor Dead Pixel & Color Test
Use full-screen solid colors and gradients to inspect pixels and color output.
Open tool →System
File Hash & Integrity Checker
Calculate MD5, SHA-1, and SHA-256 locally and compare a published hash.
Open tool →System
PC Status & Performance Checker
Check browser-visible system details, calculation speed, latency, and storage.
Open tool →