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).