Online Tone Generator
Generate a pure tone at any frequency, right in your browser.
A single, precise pitch
A tone generator produces a pure tone at a frequency you set — a single steady pitch with no other sound mixed in. This generates one in your browser, useful for testing audio equipment, tuning, hearing checks, and experiments with sound.
Set a frequency to generate a pure tone.
What a pure tone is good for
A pure tone is a clean single frequency, unlike everyday sounds which are mixtures of many frequencies, and that purity makes it a precise tool. It is used for testing whether speakers or headphones reproduce a given frequency cleanly, as a reference pitch for tuning an instrument, for checking the range of your hearing, and for demonstrating how frequency relates to perceived pitch — low frequencies sound deep, high ones shrill. A sensible caution applies to any tone generator: start at a low volume and raise it gently, since a sudden loud tone can be unpleasant and, at high volumes, harmful to hearing or equipment, and high frequencies in particular can be surprisingly piercing. Used carefully at reasonable volumes, a pure tone is a versatile tool for anyone working with, testing, or simply exploring sound.
Online Tone Generator FAQ
What is a pure tone?
A single steady frequency with no other sound mixed in, unlike everyday sounds which are mixtures of many frequencies — its purity makes it a precise tool.
What is it used for?
Testing audio equipment, tuning instruments, checking hearing range, and demonstrating how frequency relates to pitch.
Any safety note?
Start at a low volume and raise it gently — a sudden loud tone can be harmful to hearing or equipment, and high frequencies can be piercing.
Is anything uploaded?
No. The tone is generated in your browser.