432Hz Music Converter

432Hz Converter retunes your music from one reference pitch to another — most famously 440 Hz to 432 Hz — and to 528, 963 or any other pitch you choose. Convert a whole library, or retune a track live and A/B it against the original until it sounds right.

TWO WAYS TO RETUNE
• Batch converter — add files or a whole folder and retune everything at once. The output mirrors your original folder structure, and every file keeps its tags and cover artwork.
• Live player — hear the retune in real time, flip instantly between the original and the tuned pitch, and save the version you like.

EVERY PITCH, NOT JUST 432
• 440 → 432 Hz (Verdi tuning) in one tap
• Solfeggio presets: 174, 285, 396, 417, 528, 639, 741, 852 and 963 Hz
• Standard & historical pitches: 415 (Baroque), 432, 435, 440 and 442 Hz
• Or enter any source and target frequency, down to fine cents
• Not sure what a track was tuned to? Auto-detect the source pitch (experimental!)

BUILT FOR YOUR LIBRARY
• Reads MP3, M4A, AAC, Ogg, FLAC and WAV — plus the audio from video files
• Folder structure, metadata and artwork carried straight across
• Non-destructive: your originals are opened read-only and never changed; new files are written safely and never overwrite an existing one