Tap Tempo & BPM Finder

Very accurate after about four taps. The tool takes a rolling average of your last eight tap intervals and recomputes BPM every tap, so the more taps you give it, the more it smooths out human timing noise. With steady tapping at 120 BPM the readout typically settles within about 0.5 BPM of the true tempo by the fourth or fifth tap.

Two taps give you a number, four taps give you a reliable number, and eight taps fill the rolling window with fresh data. If your first couple of taps were off, the stale data falls out of the window as you continue, so the reading self-corrects. The Stability indicator under the BPM display tells you how consistent your last several taps were — anything above 70% is usable.

The Half / Double card in the stats row shows the BPM at half and twice the detected tempo. If you tapped to the backbeat instead of the downbeat, or tapped eighth notes instead of quarters, glance at that card and pick the value that matches the genre. A song that feels like 120 BPM is unlikely to actually be 60 or 240, so the right answer is usually obvious from feel.

Because human tapping isn't perfectly even — that's the rolling average doing its job. Each new tap adjusts the average slightly. If you tap for ten or twelve seconds steadily, the number converges on the true tempo. If the BPM is jumping by more than a couple of BPM with each tap, the Stability indicator will show under 70% — slow down, find the pulse, and try again.

Yes. The big tap button is sized for touch and the touchstart handler fires immediately so there's no synthetic-click delay. Audio click track also works on mobile after the first tap (browsers require a user gesture to start audio, which the first tap provides).

Yes. Press Space or Enter anywhere on the page to register a tap. The tool ignores keypresses while focus is on a text input, so other controls don't interfere. Repeated keys (holding down the key) only register once, so you can't game the BPM by holding Space.

Both the audio click and the visual pulse are driven by a single Web Audio scheduler using a 100ms lookahead. The audio click is precisely scheduled on the AudioContext timeline, and the visual flash is fired by a setTimeout aimed at the same scheduled time. They stay locked together rather than drifting independently — which is what would happen if the visual were on a CSS animation loop and the audio were on its own clock.

Yes, completely free. It's part of the Guitar Lick Lab toolkit — a free set of music tools built by Music With Marky. If you're already working in a DAW, check out the free REAPER JSFX plugins (Muter Gate, Vox Leveler, Multiband Saturation) on the main tools page.