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Generate Audio Tones at Any Frequency

Generate pure sine, square, sawtooth, and triangle wave tones at any frequency. Test speakers, hearing, and audio gear. Runs in browser,.

1
Set frequency
Enter a frequency in Hz or use the slider (20 Hz to 20,000 Hz)
2
Choose waveform
Select sine, square, sawtooth, or triangle wave type
3
Play or download
Play the tone through your speakers or download as a WAV file
Hz
Local compute
440 Hz
Ready

Frequently Asked Questions

What frequency range is supported?

20 Hz to 20,000 Hz, covering the full range of human hearing.

Can I generate multiple tones at once?

Yes. Layer multiple frequencies to create chords or test tones.

Can I customize the output?

Yes. The settings panel has all the knobs — size, format, colors, and tool-specific options.

This tool is free thanks to our sponsors. Support Loft Tools