432 Resonance Tuner

Convert any song to 432 Hz.

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Drop a song here

or click to choose · mp3, wav, flac, m4a, ogg

✓ Detects your song's actual frequency

Most "432 Hz converters" blindly shift every song by ~32 cents, assuming the source is exactly 440 Hz. Songs mastered at 438, 441, 444 — or any of the wide range you actually find in the wild — end up wrong. 432 Resonance Tuner analyzes your song first and shifts by the exact amount needed to land at 432.

✓ Your music never leaves your device

All processing runs in your browser. No upload, no account, no server, no tracking. Your files stay yours — perfect privacy by design.

Hear it for yourself

Every song on my Suno page (@arnarb) has been run through 432 Resonance Tuner. Listen and compare against any commercial track at 440 Hz — the difference is audible if your ear is sensitive to it.

Heads-up about Suno: every song generated by Suno comes out at approximately 440 Hz, even when you explicitly ask it for a 432 Hz version. The "432Hz" label in song titles is cosmetic — the actual audio is standard concert pitch. We've verified this across multiple Suno tracks tagged "432hz" — they all came out between 440.07 and 440.60 Hz. 432 Resonance Tuner is what actually shifts them.

Desktop app coming soon

This page handles one song at a time — perfect for trying it out. The desktop app will convert hundreds or thousands of files in one batch, keep original formats (mp3 stays mp3), and work on entire music folders recursively.