Display Hz Monitor: Refresh Rate Sync

Verify if your OS and browser are correctly utilizing your high-refresh-rate monitor. Compare visual synchronization tearing using moving blocks.

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Technical Audit

This utility is a high-performance diagnostic node optimized for modern browser environments. All data processing is evaluated locally without requiring heavy external plugins.

Hardware Detection: Accurately deduces your current running refresh rate by measuring frame-paint deltas.
UFO Tracking Animation: Features horizontal scrolling blocks at varying framerates to visually prove screen tearing versus smooth sync.
Client-Side Node: Processes data completely in your physical RAM environment without server lag.
Multi-Monitor Support: Drag this tab between screens to see real-time refresh rate recalibration natively.

System FAQ

I have a 144Hz monitor but it shows 60Hz. Why?

You likely need to open your OS 'Display Advanced Settings' and manually select 144Hz. It often defaults to 60Hz out of the box.

What causes the visual stutter in lower-framerate blocks?

When a block moves at 30fps on a 60Hz monitor, the display holds each frame twice, confusing the eye's natural tracking and causing visible stutter.