Online Tone Generator
Generate a pure tone at any frequency and waveform in your browser using the Web Audio API. Nothing is uploaded.
Pure browser JavaScript — uses the Web Audio API (OscillatorNode).
How to use this tool
- Pick a waveform (sine, square, sawtooth, triangle).
- Drag the frequency slider to your target Hz and set the volume.
- Click Play to hear the tone and Stop to silence it.
Generate a pure tone at any frequency and waveform in your browser using the Web Audio API. Nothing is uploaded.
Frequently asked questions
- Is the audio generated locally?
- Yes — the tone is synthesised in real time by the browser's Web Audio API. No sound files are downloaded and nothing is uploaded.