20-20000 Hz4 WaveformsNote DetectionFree
440 Hz
A4
20 Hz20,000 Hz
Frequently Asked Questions
What frequency range does this support?
You can generate tones from 20 Hz to 20,000 Hz, covering the full range of human hearing.
What waveforms are available?
Sine (smooth), square (harsh), sawtooth (buzzy), and triangle (mellow) waveforms.
Does it show the musical note?
Yes, when the frequency is near a musical note, the corresponding note name and octave are displayed.
Love this tool? Explore 999+ more
Free online tools for images, PDFs, text, code, and more. All running in your browser.
Explore All Tools