Online Metronome - Free Metronome with Tap Tempo

A metronome does one job: it tells the truth about time. This one runs entirely in your browser and uses the Web Audio API's sample-accurate clock rather than ordinary JavaScript timers, which browsers throttle whenever a tab loses focus. Clicks are scheduled a tenth of a second ahead on the audio timeline, so the pulse you hear is as steady at 40 BPM largo as it is at 208 BPM prestissimo — no drift, no stutter when you switch windows, nothing to install. Set the tempo three ways: type an exact number, drag the slider, or use the tap tempo button — tap along with any song or your own feel, and the metronome averages your recent taps into a BPM. The plus and minus buttons nudge by one or five BPM, which is handy for the classic practice method of creeping a difficult passage up two or three clicks at a time. The time signature control sets how many beats form a bar, from 1/4 to 7/4, and the accent toggle plays the first beat of each bar at a higher pitch so you always know where the downbeat lives. Drummers practicing odd meters can watch the beat dots as well as listen: the current beat lights up in sequence, with the accented downbeat in amber. Below the controls, the panel shows the numbers behind the click: the interval between beats in milliseconds, the duration of a full bar, and the beat rate in hertz. Producers use the interval value to set delay times; educators use it to explain why 120 BPM means exactly two beats per second. Common tempo ranges to orient by: largo sits around 40–60 BPM, andante 76–108, moderato 108–120, allegro 120–156, and presto 168–200. Most pop and house records live between 100 and 130 BPM, drum & bass around 170–178. If you are working out a song's tempo, tap along first, then fine-tune by ear against the click. Everything runs locally — the metronome makes its own click sound with an oscillator, so it works offline once the page has loaded and never records or transmits anything.