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Audio Tools

Generate reference tones and explore audio frequency, pitch, and waveforms with free browser tools.

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Audio Tools

Audio Frequency and Tone Generator

synthesizersound designfrequencypitch

Explore tones from 20 Hz to 20 kHz, compare four oscillator waveforms, and adjust the volume with this simple browser-based tone generator.

Key Features

  • Frequency control from 20 Hz to 20 kHz
  • Sine, square, sawtooth, and triangle waveforms
  • Adjustable output volume