Free sound tools
Small audio tools that run entirely in this page. No sign-up, no upload, no install — every tone is generated in your browser as you press play.
Tone GeneratorPlay any frequency from 20 Hz to 20 kHz as a sine, square, triangle or saw wave.Hearing TestFind the highest frequency you can still hear, and what it says about your ears.Noise GeneratorWhite, pink and brown noise for sleep, focus and masking background sound.
All of it in one app
Frequency Generator does everything here plus multi-tone output, sweeps, binaural beats and DTMF — without a browser tab to keep open.
