Mouse Tools — Free Online Testers

These tools read your mouse through standard browser input events — clicks, movement, and button state — the same signals every game and application receives. No drivers or manufacturer software required, and nothing you do here ever leaves your browser tab.

Mouse problems usually show up as one of a handful of symptoms: a switch that fires twice per press, an unreliable or dead button, an unclear sense of your actual DPI versus the number on the box, or simple curiosity about your reflexes or polling rate. Match your situation to a tool below.

Which Mouse Tool Do You Need?

Start from the symptom, not the spec sheet:

Symptom / Question	Use This Tool
One click sometimes registers as two	Double Click Test
You want your real DPI, not the marketing number	DPI Analyzer
You want to measure your clicks per second	Click Speed Test
A button feels dead, sticky, or unresponsive	Mouse Button Check
You want to confirm your polling rate (125–1000Hz)	Mouse Polling Rate
You want to measure your reaction time	Reaction Time Test

DPI vs. Polling Rate

These two get confused often, so it's worth separating them clearly: DPI controls how far your cursor moves per inch of physical mouse movement — it's about sensitivity. Polling rate controls how often your mouse reports its position to your PC per second, measured in Hz — it's about responsiveness and smoothness, not distance. A high-DPI mouse with a low polling rate can still feel laggy, and vice versa.

Frequently Asked Questions

What's the difference between DPI and polling rate?

DPI (dots per inch) determines cursor sensitivity — how far the pointer travels per inch of physical movement. Polling rate (Hz) determines how often the mouse reports its position to your computer per second. Higher polling rate means smoother, more up-to-date tracking; it doesn't change sensitivity.

Can I test my mouse without installing manufacturer software?

Yes — that's the point of these tools. They read standard browser input events, so you don't need Logitech G Hub, Razer Synapse, or any other manufacturer app installed.

Does this work with a trackpad?

Click Speed Test, Double Click Test, Mouse Button Check, and Reaction Time Test all work with a trackpad since they just need click events. DPI Analyzer and Mouse Polling Rate are designed around mouse hardware and won't give meaningful results on a trackpad.

Why does my CPS score vary between attempts?

Click speed depends on hand fatigue, clicking technique (finger vs. wrist vs. jitter clicking), and even how firmly you're pressing. Run a few attempts and look at your best consistent result rather than a single outlier.

Is double-clicking always a hardware fault?

Usually, yes. Worn mechanical switch contacts are the most common cause of a single press registering as two clicks. It's occasionally software-side (aggressive double-click speed settings in your OS), but if the Double Click Test confirms it happens at a normal clicking pace, the switch itself is almost always the culprit.

Does browser mouse testing work on Mac and Linux?

Yes. All six tools use standard web APIs supported across Windows, macOS, Linux, and Chrome OS — the underlying mouse hardware and OS don't matter.

Explore More