Adjust the volume, speed, and pitch of an audio file — preview it live, then download. Everything happens in your browser; your file is never uploaded.
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🎚️
Click to choose or drag an audio file here
MP3, WAV, M4A, OGG and more
0:00 / 0:00
⚠️ Please render HQ audio first
Volume100%
0% is silent, 100% is original, 200% is double.
Speed1.00×
Changes how fast it plays.
Pitch0 semitones
Shifts pitch up or down.
⚙️ Advanced Granular Settings
Grain Size40 ms
Lower (20–40ms) for vocals/speech. Higher (60–100ms) for smooth instrumentals.
Crossfade Overlap4×
Increase if you hear metallic clicking or phase buzzing.
MP3
WAV
Processing…0%
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Good to know
Everything happens in your browser — your audio is never uploaded anywhere.
Use the play button to hear your changes live before downloading.
Speed and pitch are linked in the live preview (like a record player). Turn on high-quality mode before downloading to change one without the other — it takes a little longer to process.
MP3 is best for sharing and general use; WAV is lossless and larger, best for editing software.