How to use it
Start at a low device volume, choose the audio settings, and stop if playback becomes uncomfortable.
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Sound & audio
Frequency Tone Generator
Play waveforms at any frequency from 20 Hz to 20 kHz.
440Hz
⚠️ Start at low volume. This is not a medical hearing test; stop immediately if you feel discomfort.
TOOL GUIDE
When to use it
Content reviewed · 2026-07-23
Play waveforms at any frequency from 20 Hz to 20 kHz.
Before you rely on the result
Results can vary with the browser, operating system, display, and input device.
Data handling
Values are used only on the current screen and are not sent or stored separately.
Related tools
A few tools that fit naturally with this task.