Online Tone Generator

Choose a frequency, waveform, and volume to generate a tone directly with Web Audio.

Frequency (Hz)

Waveform

Volume

Fine tune (cents)

440.00 HzActual frequency

A4Nearest note

2.273 msPeriod

StoppedStatus

Keep volume comfortable. Browser/device speakers may not reproduce very low or very high frequencies accurately.

How to use this Online Tone Generator

Generate sine, square, triangle, or sawtooth tones from 20 Hz to 20 kHz. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.