Loading tool...
Generate pure audio tones with sine, square, sawtooth, and triangle waveforms. Create multiple oscillators, binaural beats, and export as WAV.
Convert text to speech using browser Web Speech API. Choose from multiple voices, adjust speed and pitch, and play audio directly.
Generate beautiful waveform visualizations from audio files. Choose from bars, mirror, line, or circular styles. Customize colors and export as PNG.
Shift the pitch of audio up or down in semitone or cent increments without altering playback speed. Transpose a vocal take to match a different key, drop-tune a guitar recording, or create creative pitch effects — all with real-time preview so you can dial in the exact interval before exporting.
Pitch shifting decouples frequency from time. The algorithm resamples the audio to change pitch, then time-stretches it back to the original duration. Small shifts (a few semitones) sound transparent; larger shifts introduce formant distortion that makes voices sound unnatural. Formant-preserving mode compensates for this by keeping vocal resonances at their original frequencies while shifting the fundamental pitch.
Move a backing track to a key that suits your vocal range.
Pitch vocals down for a deep effect or up for a chipmunk-style result.
Nudge a recording that is slightly sharp or flat back into tune.
Duplicate a vocal line and shift the copy by a third or fifth to build a harmony part.
A semitone is one piano-key step. A cent is one hundredth of a semitone, used for fine pitch adjustments.
The algorithm stretches formants along with pitch. Enable formant preservation to keep the natural vocal character.
No. The duration stays identical; only the frequency content changes.
All processing happens directly in your browser. Your files never leave your device and are never uploaded to any server.