Guitar Tuner AI

The cleanest guitar tuner. No subscriptions. No ads in your face. Just tune.

Guitar Tuner AI listens through your microphone and shows you exactly how in-tune each string is — with a precision meter, real-time frequency display, and a needle that responds in milliseconds.

TUNE • Chromatic tuner — works for guitar, bass, ukulele, and more • Real-time pitch detection with YIN algorithm • Visual needle + cents display (-50 to +50) • Frequency readout in Hz • Auto or manual string selection • Reference pitch A4 = 440 Hz (adjustable)

TUNINGS • Standard, Drop D, Open G, Open D, DADGAD, and 20+ presets • Guitar 6, Guitar 7, Guitar 8, Ukulele, Bass 4/5/6

CHORDS • 100+ chord diagrams — Major, Minor, 7th, Sus, Dim, Aug • Multiple voicings per chord • Play sound: Strum or Arpeggio mode • Transpose to any key

METRONOME • 20–300 BPM with tap tempo • Visual beat indicator • Runs alongside tuner

WHY GUITAR TUNER AI? Other tuner apps make you pay for what should be free. Guitar Tuner AI is — and always will be — completely free. No "pro" version. No subscription. No strings attached (except the ones you're tuning).