A free tuner for guitar, mandolin, violin, banjo and more, in your browser. Tap the mic and play one note to see how many cents sharp or flat you are, on a needle or a staff. Pick your instrument to see its strings, or tune by ear to a reference tone.
Which instruments does it tune?
Guitar, mandolin, violin, viola, cello, bass, ukulele, banjo in several tunings, tenor banjo, mandola and octave mandolin, or any note in chromatic mode.
Can I tune to A 442 or 415?
Yes. Set A4 anywhere from 415 to 466 Hz.
Is my audio recorded?
No. The tuner listens in your browser. Nothing is recorded or uploaded.
Can I tune by ear?
Yes. Play a reference tone for each string and tune until the beating stops.
What does the staff view show?
The note you're playing drawn on a staff as you play it, so you can see your pitch drift over a long note.
What are the standard tunings?
Guitar is E A D G B E from low to high. Mandolin and violin are G D A E. Viola and cello are C G D A. Ukulele is G C E A, and bass is E A D G.