432You
Tune what's live.
Align what's yours.
Hear your instrument against an A=432 reference for free. When it is the whole recording that needs alignment, put your own song through the 432You conversion engine.
The tuner starts belowFree live tuner
Find the center.
Use your microphone to tune any live instrument against A=432. The signal stays in this browser.
Online tuner · A=432
Tune your instrument free.
Use your microphone to tune guitar, voice, bowls, strings, or any live instrument against a 432 Hz reference. No account, no upload, no file leaves your device.
Current note
Waiting for signal
Start the tuner to listen
The center line is the nearest equal-tempered note with A4 tuned to 432 Hz.
Free tuner
Tune an instrument anytime, no account required.
432 reference
Every detected note resolves against A=432 temperament.
Plugin suite path
Need 432 tuning in your DAW? Move up to the 432Tuner plugin suite.
Your song · In 432
Align the whole recording.
The free tuner handles the note in front of you. The conversion tool handles the song, demo, or recording you own.
Your file stays yours.
Processed locally in your browser · never uploaded · for your own files