Tone Generator
Generate audio frequencies in your browser. No install, no tracking.
440
Hz
A4
0 cents
Play
Frequency
Freq
Hz
Waveform
Sine
Square
Sawtooth
Triangle
Volume
Vol
50%
Detune
Cents
0 cents
Presets
C4
261.63 Hz
A4
440 Hz
C5
523.25 Hz
1 kHz
Test tone
-1 Octave (÷2)
+1 Octave (×2)