About MouseTestPro
We built MouseTestPro because legacy peripheral test sites are bloated with intrusive banner ads, inaccurate math, and opaque backend tracking scripts. Our goal is simple: deliver a precision, zero-latency diagnostic suite that runs entirely inside your browser.
100% Client-Side
Every report rate calculation, switch debounce timer, and CPI distance metric is calculated locally in your browser’s V8 JavaScript runtime with zero server hops.
Zero Telemetry
No user accounts, no fingerprinting, and no data tracking. Your keystrokes, click counts, and mouse movement trajectories never leave your local device memory.
Sub-Millisecond APIs
Directly leverages W3C getCoalescedEvents(), Pointer Lock API, and Web Audio API for unbuffered sub-frame hardware reporting.
Why We Built MouseTestPro
As competitive gamers and peripheral enthusiasts, we constantly test gaming hardware: checking whether a new 8000Hz mouse actually outputs a stable 0.125ms interval, verifying if an oxidized mechanical switch has begun chattering, or calibrating true CPI across mousepads.
Existing testing tools were either antiquated Windows `.exe` files from 2012, or web tools crippled by browser render throttling that missed micro-movements. We engineered MouseTestPro using modern web standards to provide an authoritative, open benchmark suite accessible from any operating system (Windows, macOS, Linux, and ChromeOS) without software installation.
How Browser Diagnostics Work Under the Hood
1. Unthrottled Pointer Lock & Raw Sensor Counts
In the DPI Analyzer, we invoke the W3C Pointer Lock API. This disables OS-level cursor acceleration curves and screen edge boundaries, capturing raw unaccelerated optical sensor coordinate pulses directly from the USB controller.
2. Browser Coalesced Events & High-Hz Polling
Browsers historically dispatch input events only once per display refresh frame (e.g. 60Hz or 144Hz). In our Polling Rate Tester, we tap into event.getCoalescedEvents() to extract all intermediate micro-reports sent between render ticks, allowing true measurement of 1000Hz, 4000Hz, and 8000Hz hardware.
3. Millisecond Timestamp Deltas ($\Delta t$)
In the Double-Click Tester, we sample high-resolution microsecond monotonic clocks (performance.now()) between consecutive switch actuations to catch electrical leaf bounce chatter before OS debounce masks it.
Independent & Community Driven
MouseTestPro is completely independent and has no financial affiliation or sponsorship with peripheral manufacturers (Logitech, Razer, Wooting, Zowie, Pulsar, etc.). All benchmark data is gathered from objective hardware specifications and public community databases.