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Dev tools · May 20, 2025

AB

A browser-based tone generator built with the Web Audio API

I built maketonesonline.com — a simple browser-based tone generator to experiment with the Web Audio API. What it does: Generates tones from 20 Hz to 20,000 Hz Supports sine, square, triangle, and sawtooth waveforms Lets you adjust frequency, volume, and left/right stereo pan Includes multi-tone, binaural beat, subwoofer/bass frequency, and sweep tone modes It’s useful for testing speakers, hearing tests, exploring sound design, or just seeing how high a pitch you can still hear. Check it out: https://maketonesonline.com I’d love your thoughts, bug reports, or ideas for…

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In plain words

Maketonesonline.com is a browser-based tone generator that produces frequencies from 20 Hz to 20,000 Hz using sine, square, triangle, and sawtooth waveforms. Users can adjust frequency, volume, and stereo panning, with specialized modes for multi-tone generation, binaural beats, bass frequencies, and frequency sweeps. It's designed for speaker testing, hearing assessments, sound design exploration, and measuring hearing range limits.

written from the facts on this page · September 2026

From the sources

In the maker’s words, at launch

I built maketonesonline.com — a simple browser-based tone generator to experiment with the Web Audio API. What it does: Generates tones from 20 Hz to 20,000 Hz Supports sine, square, triangle, and sawtooth waveforms Lets you adjust frequency, volume, and left/right stereo pan Includes multi-tone, binaural beat, subwoofer/bass frequency, and sweep tone modes It’s useful for testing speakers, hearing tests, exploring sound design, or just seeing how high a pitch you can still hear. Check it out: https://maketonesonline.com I’d love your thoughts, bug reports, or ideas for improvement!

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