About PixelCheck365
Free, fast, and privacy-first display diagnostic utility engineered to help users easily inspect screens for defects, stuck pixels, and backlight anomalies.
Our Mission
Precision display diagnostics for all
When buying a new smartphone, laptop, or gaming monitor, screen defects such as dead pixels, stuck bright dots, IPS glow, and backlight bleed often go unnoticed until retailer return windows have expired.
PixelCheck365 was built to provide an instant, zero-install, 100% private solution that delivers pure, uncompressed hardware color output directly in your web browser. No accounts, no telemetry, and no heavy downloads required.
100% Client-Side
All testing logic executes entirely inside your browser viewport. No screen recording, camera data, or device fingerprints are sent to any server.
Ultra-Fast & Lightweight
Zero bloat libraries or slow animations. Clean, direct sRGB color canvases that load and render instantaneously on any phone, tablet, or PC.
Hardware Standardized
Follows international ISO 9241-307 visual test aid guidelines with subpixel magnification, alignment grid, and comprehensive color sequences.
Test Your Screen in Seconds
Launch the distraction-free full-screen diagnostic suite right now.
Launch Screen Test