Test and explore audio frequencies with a free browser-based tone tool designed for music and equipment checks. Generate precise tones from 20 Hz to 20 kHz and select four basic waveforms with adjustable volume. Compare left and right channels independently or use stereo output. Common presets such as 440 Hz and 1 kHz make tuning and audio testing faster, while sweep mode helps identi... https://aitoolspros.com/tools/audio/tone-generator/