# ScreenHz — Monitor & Display Benchmark Suite
# https://screenhz.com | llms.txt v1

> ScreenHz is a free, browser-native monitor and display benchmark suite.
> It tests refresh rate, motion clarity, input latency, ghosting, and more —
> entirely in-browser with no installs, downloads, or sign-ups required.

## About

ScreenHz provides professional-grade display diagnostics accessible to everyone.
Tests run using the browser's requestAnimationFrame API, high-resolution timers,
and canvas rendering to measure real hardware behavior.

## Key Tools

- [Refresh Rate Test](https://screenhz.com/refresh-rate): Measures your monitor's actual Hz using frame-timing
- [Ghosting Test](https://screenhz.com/ghosting): Detects pixel response time ghosting artifacts
- [Reaction Time Test](https://screenhz.com/reaction-time): Measures human input latency in milliseconds
- [Mouse Poll Rate](https://screenhz.com/mouse-poll-rate): Detects your mouse's USB polling frequency (125–8000 Hz)
- [Frame Skipping Test](https://screenhz.com/frame-skipping): Identifies dropped or duplicated frames
- [Aim Trainer](https://screenhz.com/aim-trainer): Browser-based target practice for FPS games
- [DPI Calculator](https://screenhz.com/dpi-calculator): Computes effective DPI and eDPI for gaming mice
- [VRR Simulation](https://screenhz.com/vrr-simulation): Simulates Variable Refresh Rate (G-Sync/FreeSync) behavior
- [Stutter & Tearing](https://screenhz.com/stutter-tearing): Detects screen tearing and frametime inconsistency
- [Motion Blur](https://screenhz.com/mprt): Tests MPRT (Moving Picture Response Time)
- [Black Levels](https://screenhz.com/black-levels): Checks shadow/black-level calibration
- [HDR Test](https://screenhz.com/hdr): Validates HDR capability and tone mapping
- [Benchmark Suite](https://screenhz.com/benchmark): Full display benchmark with a shareable score

## Guides

- [What is Monitor Refresh Rate?](https://screenhz.com/guides/what-is-refresh-rate): Explains Hz, frame times, and why refresh rate matters for gaming
- [Hz vs FPS Explained](https://screenhz.com/guides/refresh-rate): The relationship between monitor Hz and GPU frame rate
- [What is Mouse DPI?](https://screenhz.com/guides/mouse-dpi): DPI, eDPI, sensitivity, and what settings pro gamers use
- [How to Improve Gaming FPS](https://screenhz.com/guides/improve-fps): Settings, hardware, and driver tweaks to boost frame rate
- [Mouse Poll Rate Guide](https://screenhz.com/guides/poll-rate): 125Hz vs 500Hz vs 1000Hz vs 8000Hz polling explained
- [G-Sync vs FreeSync](https://screenhz.com/guides/gsync-vs-freesync): NVIDIA and AMD adaptive sync technologies compared
- [Motion Blur Explained](https://screenhz.com/guides/motion-blur): What causes motion blur and how to reduce it

## Sitemap

https://screenhz.com/sitemap.xml

## Contact / Attribution

Site: https://screenhz.com
Twitter/X: @screenhz
License: Tools are free to use; content is © ScreenHz