123 Guitar Tuner Instructions

  1. Click a Note on the guitar tuner above. Make sure your computer speakers are on.
  2. Play a Note on your guitar. Hear the difference between your guitar's sound and that coming from our guitar tuner
  3. Adjust your guitar string accordingly. You can wait to hear our guitar tuner repeat the sound, or click on any other note to test out a different string!

Guitar Tuner

Want to tune your guitar, but don't want to spend $20 down at the music store? Are you about to play a gig, and just forget your guitar tuner back home? Don't worry man...we got your back.

123Guitar Tuner.com is your #1 place to go whenever your instrument needs tuning. Our sound effects are beautiful and accurate, and our interface is simple to use and second to none.

Best of all--this app is free. So, don't go wasting your money down at the local music shop. Just use your ears. It's as easy as 1, 2, 3!

Guitar Tuner Navigation

  • Open G Tuning
    open g tuning
  • DADGAD Tuning
    dadgad tuning
  • Standard Tuning
    standard tuning
  • Drop D Tuning
    drop d tuning
  • Open D Tuning
    open d tuning
  • Low C Tuning
    low c tuning
  • Open C Tuning
    open c tuning
  • Drop B Tuning
    drop b tuning
  • Open E Tuning
    open_e_tuning
  • Guitar Collection
    guitar collection
  • Tuner Developer John
    guitar tuner developer
  • CEO Fredrik Kaupang
    guitar programmer CEO
  • Musician Ben
    guitar tuner musician
  • Bass Tuner
    bass tuner
  • Metronome
    metronome
  • Ukulele Tuner
    ukulele tuner
  • Guitar Tuner
    guitar tuner
  • Game Audio
    game audio