TuneStand
5 tools · Web Audio · no sign up

Free online metronome, tuner
and music tools in your browser.

A precise metronome, a chromatic tuner, a tone generator, tap tempo and a note frequency chart. Built on the Web Audio API, so everything runs on your device and nothing is uploaded.

120BPM
Accent

Timing is scheduled on the Web Audio clock, so the beat stays steady even while the page is busy. Tap the tempo button in time with a song to set the BPM by ear. Keyboard: space starts and stops, up and down arrows change the tempo by 1 (hold shift for 10), escape stops.

That is the full metronome, 40 to 240 BPM. Press space to start and stop. Open it on its own page or find the tempo of a song by tapping.

Timing

Metronome

Keep steady time from 40 to 240 BPM with accents, time signatures and tap tempo.

Tap Tempo

Tap along with a song to measure its BPM, with a smoothed running average.

Pitch & tuning

Tuner

Tune any instrument by ear through your mic: note name, octave, Hz and cents.

Tone Generator

Play a pure tone at any frequency in Hz with sine, square, triangle or sawtooth waves.

Reference

Note Frequency Chart

Look up the frequency in Hz of any note from C0 to B8, with MIDI numbers and a converter.

Reference data

Tuning chart->

45 tunings across 12 instruments, every string with its note and exact frequency in Hz.

Note frequencies->

All 108 notes from C0 to B8 in Hz, with MIDI numbers and six reference pitches.

Open data->

The whole lot as keyless JSON under CC BY 4.0. No account, no rate limit, CORS open.

Embed a tool->

Put the metronome or tuner on your own site with one line of HTML. Free, no script.