About

Free, lightweight browser tools for measuring click speed, input responsiveness, and hardware performance.

CPSCheck is a free set of browser tools to test clicking speed (CPS), spacebar speed, mouse buttons, polling rate and more. Whether you are benchmarking a gaming mouse, testing mechanical switches, or training for faster clicking techniques like butterfly or drag clicking, our utilities give you instant and accurate data.

Every test runs 100% locally in the visitor's browser. Your clicks, keystrokes, and timing data are processed directly on your computer or mobile device using high-resolution browser performance APIs.

There are no accounts to create, no fees, and nothing to install. All tools load instantly and work right away across modern desktop and mobile browsers.