Free 6-String Ukulele Tuner Online | Fast & Accurate

A 6-string ukulele offers a magnificent, chorus-like fullness that standard 4-string ukes just can’t match. Whether you’re playing a traditional 6-string tenor with doubled courses or a compact guitalele, keeping it properly tuned online is the secret to unlocking that rich, shimmering tone.

Two Different Types of “6-String Ukuleles”

Before firing up an online tuner, it helps to identify exactly which instrument you hold, because not all 6-string ukuleles use the same tuning.

1. The True 6-String Ukulele (Tenor or Concert): This instrument has four courses, but two of them are doubled up—usually the C and A strings (or sometimes G and C). The standard configuration is tuned with paired courses like g-G-C-C-E-a-A. It uses standard ukulele chord shapes, but yields a much bigger, chorused resonance.
2. The Guitalele (Guitar-Ukulele): Often grouped as a 6-string ukulele, a guitalele is actually tuned exactly like a classical guitar with a capo on the 5th fret. Its notes from lowest to highest are A-D-G-C-E-A. While you play it like a guitar, its fingerboard sizing feels like a large ukulele.

Standard Tuning Reference for Online Tuners

When using a standard chromatic online tuner or a microphone-enabled tuning web app, look closely at the target notes:

• True 6-String Uke (GCCEAA Variant):
  • 4th Course (G): Single high G (G4).
  • 3rd Course (C): Two strings tuned to C4 (often one standard and one an octave lower, or unison).
  • 2nd Course (E): Single E4 string.
  • 1st Course (A): Two strings tuned to A4 (unison or octave pair).
• Guitalele (ADGCEA Variant):
  • 6th String: A2
  • 5th String: D3
  • 4th String: G3
  • 3rd String: C4
  • 2nd String: E4
  • 1st String: A4

Step-by-Step Guide: Tuning Online

1. Find a Quiet Space: Online microphone tuners rely on audio clarity. Move away from background noise like TVs or fans to prevent the tuner needle from jumping.
2. Select or Recognize Your Target Note: If your online tuner has preset modes (like Standard GCEA or Guitalele A-D-G-C-E-A), select the one matching your instrument. If using a generic chromatic tuner, pluck each individual string and watch the pitch indicator.
3. Tune One String at a Time:
   • Pluck firmly and let the note ring out clearly.
   • Watch the visual meter: if the needle leans left (flat), tighten the tuning peg slightly to raise the pitch. If it leans right (sharp), loosen the peg to lower it.
   • Aim for the exact center where the indicator turns green.
4. Deal with Paired Strings: On a true 6-string uke with doubled courses, tune one string of the pair first, then pluck its partner string immediately afterward. Adjust until both strings match perfectly in pitch and the meter reads dead center without beating frequencies.

Pro Tips for Nylon String Stability

• Stretch New Strings Gradually: Nylon strings stretch continuously during their first few days. Tune them up, gently pull each string upward away from the fretboard to stretch it out, and retune. Repeat this process a few times until they hold their pitch.
• Make Micro-Adjustments: Because nylon strings react quickly to tension changes, small nudges on the tuning pegs go a long way. Avoid large, sudden twists that can snap the string.