Metronome is a free practice tool for anyone who keeps time for a living or a hobby: the guitarist chasing a passage up to speed, the drummer checking whether the fill rushes, the producer who needs a dotted-eighth delay time in milliseconds, the student whose score just says Andante.

What’s here

• The metronome itself (home) — 20–300 BPM, four time signatures with an accented downbeat, quarter/eighth/triplet/sixteenth subdivisions, three synthesized click sounds, tap tempo, presets and keyboard shortcuts.
• Tap tempo — tap the beat and get a BPM reading with the stray taps averaged out.
• Tempo trainer — the click climbs automatically every few bars, so a slow-to-fast practice ramp needs no hands.
• BPM to ms — tempo-to-milliseconds math for delay lines and effects, normal, dotted and triplet.
• Guides — tempo markings and how to practice, written to answer questions rather than fill pages.

Why the timing claim is real

This isn’t a setInterval metronome. Clicks are synthesized in the Web Audio API and scheduled on the audio clock ahead of the beat — the same architecture professional practice apps use — with the scheduling tick running in a background worker so a hidden tab can’t starve it. That’s the honest reason to trust the tempo number on screen.

There are no audio files, no account, and no upload: the sound is generated in the page you’re looking at, and a single localStorage entry remembers your last settings. The privacy policy spells out exactly what leaves the device (almost nothing).

Who runs it

A small independent team maintains this site as part of a family of single-purpose utility tools. Found a tempo quirk, a browser where the click breaks, or a feature worth adding? Contact us — we read everything, and bug reports with device + browser details get fixed fastest.