Detected key
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Free tool · Runs in your browser
Tone Studio
Upload a song, we detect its musical key, then shift the pitch up or down — tempo untouched — and download the result. Built for singers finding their range.
Drop an audio file here
or click to browse — MP3, WAV, M4A, OGG…
Your file never leaves this device. All analysis and processing happen locally.
or paste a YouTube link
song.mp3
Choose another file
Transpose
0semitones
reset
0:00
0:00
Download renders a full-quality WAV at the chosen pitch. Tempo and length stay identical to the original.
Private by design — audio is processed entirely on your device with the Web Audio API. Nothing is uploaded to any server. Pitch engine: SoundTouchJS (LGPL).