How to Use Tone Generator
Generate a pure test tone at any frequency from 20 Hz to 2 kHz with sine, square, triangle or sawtooth waveforms — for audio testing, tuning and hearing checks.
Open the Tone Generator tool →What is Tone Generator?
Play a pure tone at any frequency and waveform (Web Audio). It's completely free, needs no sign-up, and runs entirely in your browser — so it's fast and private.
How to use Tone Generator
- Open the Tone Generator tool.
- Add your media file.
- Choose your export settings.
- Process and download the result. Everything runs in your browser — nothing is uploaded.
Frequently asked questions
What can I use a tone generator for?
Testing speakers and headphones, tuning instruments, hearing checks and sound design — any pure frequency on demand.
Which waveforms are available?
Sine, square, triangle and sawtooth, each with its own timbre, via the Web Audio API.
Could it harm my ears or speakers?
Start at a low volume. Loud or very high-frequency tones can be uncomfortable and, at extremes, stress small speakers.
Ready to try it?
Open Tone Generator →