What the tool does, how to run it, and what to expect from the result.
Drag the slider or type a frequency and press Play; changes apply while the tone plays. Sine is a pure tone; square, triangle and sawtooth add harmonics. Presets jump to common test frequencies, the balance slider sends the tone to one ear, and ±1 Hz steps help with fine matching, for example to find a room resonance or match a tinnitus pitch. A4, the tuning note, is 440 Hz.
A quick way to understand who this helps, what it solves, and where it connects next.
Gamers, PC builders and anyone checking a device before a warranty claim.
Using the tone generator without installing anything or signing up.
Short answers for the questions people usually have before trying a utility like this.
No. Phone and laptop speakers fade below about 200 Hz, and most adults cannot hear above 15-17 kHz. Silence at the extremes is normal.
Keep the volume low. High tones can be unpleasant before they seem loud, and long exposure at high volume can harm hearing.
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Start at a low volume and turn it up. Sounds are generated in your browser; nothing is recorded.
Uses: tuning (A4 = 440 Hz), finding a rattle or a room resonance, testing speakers and subwoofers, tinnitus frequency matching. Keep the volume low for high frequencies; they can be uncomfortable before they sound loud.