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Drum Machine / Beat Sequencer - Online Browser Drums

Create and play drum patterns in your browser with this 16-step beat sequencer. Kick, snare, hi-hat and more. Adjust BPM and apply presets.

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Kick
Snare
Hi-Hat
Open Hat
Clap
Tom
Rim

About the Beat Sequencer

A 16-step drum sequencer with 7 synthesized instruments powered by the Web Audio API. All sounds are generated in real-time with no audio file downloads.

Synthesis techniques used

  • Kick - Sine oscillator with rapid pitch envelope drop.
  • Snare / Clap - Bandpass-filtered white noise burst.
  • Hi-Hat / Open Hat - Highpass-filtered white noise (short / long).
  • Tom - Sine oscillator with medium pitch drop.
  • Rim - Short square-wave burst.

Common drum patterns to try

Steps are numbered 1–16, representing 16th notes in one bar (4/4 time). Steps 1, 5, 9, and 13 are beat 1, 2, 3, and 4 respectively.

Pattern Kick (steps) Snare (steps) Closed Hi-Hat (steps)
Basic 4/4 Rock 1, 9 5, 13 1, 3, 5, 7, 9, 11, 13, 15
Hip-Hop (Boom-Bap) 1, 7, 9 5, 13 1, 5, 9, 13
Reggaeton (Dembow) 1, 9, 13 9, 13 all 16
Disco / Four-on-the-floor 1, 5, 9, 13 5, 13 all 16