Online Metronome
Precise Web Audio API metronome with tap tempo and time signature support. Perfect for musicians, drummers, and practice sessions.
Press Start to begin
Time Signature
Beats per bar
Note value
Tempo Markings
Click a marking to set BPM to its midpoint.
About This Metronome
This metronome uses the Web Audio API with a lookahead scheduling algorithm for rock-solid timing. Unlike metronomes that rely on setTimeout alone, audio events are scheduled up to 100ms in advance, eliminating drift and jitter common in JavaScript timers.
The visual beat indicators and pendulum are synced to AudioContext time via requestAnimationFrame, so what you see stays in sync with what you hear.
Tip: Use Tap Tempo by tapping the button in rhythm with a song — after 2–4 taps the BPM is automatically calculated from the average interval.
Everything runs entirely in your browser. No data is sent to any server.
- 100% free — no account needed
- Runs in your browser
- Nothing is uploaded
Frequently asked questions
Is Online Metronome really free?
Yes. Online Metronome is completely free on PureBrowser — every feature, with no account, no trial, and no credit card.
Does Online Metronome upload my data?
No. Online Metronome runs entirely inside your browser, so anything you type, paste, or open stays on your own device.
Do I need to sign up or install anything?
Neither. There is no account and nothing to download — open the page and Online Metronome is ready to use on desktop or mobile.
Does Online Metronome work offline?
Once the page has loaded, yes. All of the processing happens locally in your browser, so it keeps working without a connection.
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