Guaranteed tuning starts with your own files.
Don't rely on "true 432 Hz" uploads — platforms don't validate tuning claims. The only guaranteed way to listen at 432 Hz or any Solfeggio frequency is to retune your own music.
HZ Detect for Desktop measures each song first, then retunes from its measured tuning to your target — in batch, on your computer, originals untouched. Converters that assume 440 get it wrong whenever the source isn't actually 440.
Retuning for every situation.
Different listening, different tool: hear retuned streams instantly, convert a single file in the browser, retune a studio space, or bring your instrument itself to a new reference.
Re-tunes any song in real time — 432 Hz and every Solfeggio frequency — everywhere you listen: web, desktop, phone, TV, even your car.
Open toolRetunes live audio from any app — Spotify, YouTube, Apple Music — to 432 Hz, Solfeggio, or a custom target. Free to try.
Open toolUpload an MP3 or WAV and download it retuned to 432 Hz or any Solfeggio frequency — free.
Open toolPlays YouTube, Apple Music, or Spotify at 432 Hz or any Solfeggio tuning — in real time, with one click.
Open toolInfuses the music and videos you love with real binaural beats.
Open toolPremium real-time retuning for wellness studios, clinics, and spas.
Open toolPlays your own music library retuned in real time — all 10 Solfeggio frequencies plus 432 Hz, lossless, one purchase.
Open toolRetune your 440 Hz instrument to 432 Hz or any Solfeggio frequency.
Open tool