Local · Private · Free

Metronome

A sample-accurate metronome with tap tempo, time signatures, subdivisions and accents — the click is generated right on your device, even offline.

The metronome isn’t available here

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120
Allegro
Press Space to start / stop
🔒 The click is synthesized locally with Web Audio — nothing about your practice session leaves your browser.

Export a click track

Render the current tempo, signature, subdivision and accent settings to a 16-bit WAV — handy as a DAW guide track.

Why this click doesn’t drift

Naive metronomes fire setTimeout for every tick, so the click wobbles whenever the browser is busy. This one uses a lookahead scheduler: a light timer wakes every 25 ms and books each click ~100 ms ahead on the Web Audio clock, which is sample-accurate. The result is a rock-steady pulse from 30 to 260 BPM — even with subdivisions running.

About Metronome

Metronome is a free, private media tool that runs entirely in your web browser. A precise metronome with tap tempo, time signatures, accents & subdivisions. Because everything happens locally on your device, your files and data are never uploaded to a server, there is no sign-up or installation required, and it keeps working offline. It is handy for metronome, tap tempo, bpm, beat keeper. Like every HeroTool by Digital Heroes, Metronome is 100% free with no limits.

How to use Metronome

  1. Open Metronome — it runs entirely in your browser, with no signup.
  2. Drag and drop your file (or click to browse) — it never leaves your device.
  3. Adjust the options to match exactly what you need.
  4. Copy or download your result — it is free, and your data stays on your device.

Frequently asked questions

Is Metronome free?

Yes — Metronome is completely free for everyone. No sign-up, no account and no usage limits.

Is it private? Are my files uploaded anywhere?

No. Metronome runs entirely in your browser on your own device, so your data never leaves your computer and nothing is uploaded to a server.

Does it work offline?

Yes. HeroTools is a Progressive Web App — once the page has loaded it keeps working offline, and you can install it as an app from your browser.

Do I need to install anything or create an account?

No. Just open the page and start using it. Installing it as an app is optional and only adds offline convenience.

What does Metronome do?

A precise metronome with tap tempo, time signatures, accents & subdivisions.