Fiddle Tuner

Tune your fiddle with your microphone, or by ear with bowed reference tones. Choose standard G D A E or the cross tunings old-time players love.

  • Free, no sign-up
  • Bowed reference tones
  • Cross tunings
  • Private, on-device
Standard A4 440 Hz

Press Start tuning, then play a string

0/4 tuned

Standard notes

A4 = 440 Hz
String Note Frequency
4 G3 196.00 Hz
3 D4 293.66 Hz
2 A4 440.00 Hz
1 E5 659.26 Hz

Fiddle or violin?

They are the same instrument. Fiddlers use standard G D A E most of the time. For old-time tunes they retune to cross A (AEAE) or cross G (GDGD), which let the open strings ring along with the melody.

Keyboard shortcuts

  • Space Start or stop the microphone
  • 1–9 Play a string’s reference note
  • M Switch Auto / Manual mode

How to tune your fiddle online

  1. Start the tuner – Fiddle Tuner

    Start the tuner

    Press Start tuning and allow access to the microphone. Hold your fiddle 20–50 cm from the mic.

  2. Play one string – Fiddle Tuner

    Play one string

    Pluck one string and let it ring. Auto mode shows the closest string. To stay on one string, switch to Manual.

  3. Adjust the peg or fine tuner – Fiddle Tuner

    Adjust the peg or fine tuner

    If the needle is on the left, tighten the string to raise the pitch. If it is on the right, loosen it. Stop when the needle is in the middle and turns green.

Frequently asked questions

Is a fiddle tuned the same as a violin?

Yes. A fiddle is a violin, tuned G3 D4 A4 E5 in standard tuning. Fiddlers also use cross tunings for some tunes.

What is cross tuning on a fiddle?

Cross tunings retune the low strings to match the high ones. In AEAE, the G string goes up to A and the D string up to E, so the open strings drone in the key of A.

Should I use fine tuners on a fiddle?

Fine tuners make the last few cents of tuning easy, especially on steel strings. Use the pegs for big changes, like switching to cross tuning.

All violin tunings

Violin & fiddle