🎹 DB-303
Diode Bass Synthesizer
⚠️ Visual Warning
This synthesizer features animated background visuals with flashing lights and patterns.
Click an option to initialize audio...
120 BPM
0%
C2
Shift
Keyboard: A-K for notes; arrows to select step and octave up/down. Spacebar for pause/play.
OSC
Saw ↔ Square
50%
0%
-2 Oct ↔ -1 Oct
CLASSIC
1000 Hz
50%
50%
600 ms
50%
MOJO
80%
70%
0
0%
0%
LP
LFO
Waveform
0.1 Hz
0%
0%
0 semi
0 oct
0%
DEVILFISH
0%
0%
60 ms
0.3 ms
300 ms
50 ms
13 ms
FX
Dimension
50%
Phaser
50%
70%
0%
0%
Delay
3 16ths
30%
Bypass
20%
75%
Transpose
Octave: 2
Built with WebAssembly + SIMD • Modern browsers required (Chrome 91+, Firefox 89+, Safari 16.4+)
DB-303 by Löwen Labs • Inspired by Open303 and JC-303