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Drum Machine

16-step beat sequencer with synthesized drum sounds.

Kick
Snare
Closed HH
Open HH
Clap
Tom

16 steps = one bar of 16th notes. Each row is a different drum sound, synthesized in your browser. Click cells to toggle hits, press Play to loop. Try kick on 1 and 9, snare on 5 and 13 for a basic backbeat.

About

A classic step sequencer in the browser. Six tracks (kick, snare, closed and open hi-hat, clap, tom), 16 steps, adjustable BPM. Drum sounds are synthesized live with the Web Audio API, so no samples to download.

How to use

  1. Click cells to toggle hits.
  2. Set the BPM.
  3. Press Play to loop.

FAQ

Can I save my pattern?+

Not yet. The page resets on refresh. If a pattern is keeping you up at night, write it down or screenshot it.

Why does it sound a bit lo-fi?+

Sounds are synthesized with simple oscillators and noise, not sampled from real drums. Good enough to sketch a groove, not a finished track.