How to use the Online Metronome
- Drag or type the tempo (BPM) and choose a time signature and subdivision.
- Press Start (or the Space bar); the first beat of each bar is accented.
- If you do not know the tempo, tap the Tap tempo button four or more times with the music.
- Raise the BPM gradually as you practise; press Space to pause any time.
Tempo markings and BPM
Common markings: Largo about 40–60 BPM, Adagio about 66–76, Andante about 76–108, Moderato about 108–120, Allegro about 120–156 and Presto about 168–200. The tool shows the marking for the current BPM.
Time signatures and subdivisions
4/4 means four quarter-note beats per bar; 3/4 is the waltz; 6/8 is usually felt as two big beats of three eighth notes. Subdivisions add softer clicks within each beat to practise eighths, triplets and sixteenths.
Why this metronome does not drift
Ordinary web timers are delayed when the page is busy or in the background. This tool schedules each click ahead of time on the Web Audio clock (lookahead scheduling), accurate to the sample, so it never speeds up or slows down during long practice.
Frequently asked questions
What tempo range is supported?
30–300 BPM, adjustable with the slider, input box or plus and minus buttons.
Does it keep playing in another tab?
Yes. The visual indicator may update less often in the background, but clicks are scheduled on the audio clock and stay accurate.
How does tap tempo work?
Tap the button four or more times along with the beat. The tool averages your recent intervals to calculate BPM, and restarts after a pause of more than 2 seconds.
It is too quiet on my phone
Check the silent switch (on iPhone it mutes web audio), the media volume, or connect headphones or a speaker.
Is it suitable for children?
Yes. The large beat light and coloured downbeat are easy to follow. Start slow and raise the tempo by 4–8 BPM once a passage feels comfortable.