Free tool · Tuners
Play any note on any instrument: you see the note and how many cents sharp or flat it is. It uses your microphone; nothing is recorded or sent.
Press start and play a string
It listens for the strongest pitch, names the nearest note and shows how far off it is in cents (a hundredth of a semitone). Within 5 cents, the needle turns green: closer than most ears can hear. Use it for any instrument, or for checking your voice.
Other tuners: guitar tuner, ukulele tuner, violin tuner, bass tuner.
Roll a track made for you, free to listen to, with a license when you want to use it.