Instrument TunerInstrument Tuner — tune with your microphone
Pick your instrument and tuning, start the mic and play one string at a time. The needle shows how far you are from the note.
Frequently asked questions
How do I tune my guitar with this tuner?
Choose Guitar and Standard (E A D G B E), press Start tuning and allow the microphone. Pluck one string and let it ring: if the needle is left of center the string is too low (tighten it), if it is right it is too high (loosen it). It turns green within 5 cents.
What do the alternate tunings mean?
Drop D lowers the 6th string to D for heavy riffs and easy power chords. Half step down (E♭) and whole step down (D) lower every string, common in rock and to sing lower. Open G, Open D and Open E sound a chord with no fingers (slide and blues), and DADGAD is a favorite of folk and Celtic guitar.
Why does the tuner show a different string or an octave off?
Pluck firmly but not too hard, a bit away from the bridge, and let the other strings stop ringing. If it still jumps, tap the string you are tuning to lock the tuner on it.
Should I use 440 Hz or 432 Hz?
A4 = 440 Hz is the international standard and what recordings, keyboards and other tuners use. Change it only to match a piano or a band tuned differently, or to play along with a recording tuned off 440.
Does it work with my audio interface?
Yes. After you allow the mic, choose your interface in Input. The audio is analyzed in your browser, raw (no noise suppression), and nothing is recorded or uploaded.