Free Guitar, Ukulele & Violin Tuner
Tune your instrument with your microphone. Play a string and the tuner shows the note and whether it is too low or too high.
How to tune your instrument
- Choose your instrument and press Start. Allow microphone access when your browser asks.
- Play one string at a time. The tuner finds the closest string and shows how far off it is.
- If the needle is on the left, tighten the string (tune up). If it is on the right, loosen it (tune down). Green means in tune.
Standard tuning
Guitar: E2 A2 D3 G3 B3 E4 · Ukulele: G4 C4 E4 A4 · Violin: G3 D4 A4 E5 · Bass: E1 A1 D2 G2. Tap a string button to hear its reference note.
Tips for accurate tuning
Tune in a quiet room, hold the phone or laptop close to the instrument, and play one string at a time. Use Chromatic to tune any other instrument or to find the note of any sound. If your ensemble uses a different reference pitch, change the A4 pitch (440 Hz is standard).
Is my microphone audio recorded?
No. The sound is analysed live inside your browser and is never recorded or sent anywhere. The microphone stops when you press Stop or leave the page.
More tools
Try the Key & BPM Finder, the Slowed + Reverb Maker or learn songs with our guitar chords.