Web Audio Synth

A subtractive synthesizer and 16-step sequencer built on the Web Audio API. Hit play, paint the grid, shape the sound — and watch the live waveform and spectrum. (Sound starts after you press Play.)

Tempo 110 BPM

Waveform

Filter cutoff 2000 Hz

Resonance 6

Attack 5 ms

Release 220 ms

Volume 70%

Click cells to program notes · the column glows on the beat · play live with your keyboard: A S D F G H J K (low → high).