BPM Tapper is a free Chrome extension developed by Chris B. It falls under the category of Browsers and is specifically categorized as an Add-ons & Tools.

With BPM Tapper, you can easily find the beats-per-minute (BPM) of the song you're listening to. All you have to do is click or press any key in time with the music, and the extension will calculate the BPM for you.

This handy tool is perfect for musicians who want to learn to play songs at the correct tempo, DJs who need to find tracks that match their mix, or anyone who simply wants to know more about their favorite tunes.

If you're curious about the inner workings of BPM Tapper, you can check out the source code on Github by visiting the Website link provided by the developer.