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Tuner

Tune your instrument precisely using the microphone. Supports guitar, bass, ukulele and more.

--
-- Hz
-50-250+25+50
0 cents
✓
IN TUNE!

🎵 Reference Notes

Standard Guitar

1
E2
▶
2
A2
▶
3
D3
▶
4
G3
▶
5
B3
▶
6
E4
▶

📖 How to Use

  1. Allow microphone access when prompted by the browser
  2. Click on "Start" to activate the tuner
  3. Play a note on your instrument
  4. Watch the indicator:
    • If it's left of 0, the string is flat (tune up)
    • If it's right of 0, the string is sharp (tune down)
    • When the indicator is at 0 and turns green, the note is perfectly in tune
  5. Click on the reference notes to hear the correct sound

Free Online Tuner - Guitar, Bass, Ukulele & More

Our free online tuner uses your device's microphone to help you tune your instrument with precision. Perfect for guitar, bass, ukulele, violin, and any other instrument.

Supported Instruments

  • Guitar Tuner: Standard tuning (E-A-D-G-B-E) and alternate tunings
  • Bass Tuner: 4-string and 5-string bass tuning
  • Ukulele Tuner: Standard ukulele tuning (G-C-E-A)
  • Violin Tuner: Standard violin tuning (G-D-A-E)
  • Chromatic Tuner: Tune any note for any instrument

How to Use the Online Tuner

  1. Allow microphone access when prompted
  2. Select your instrument or use chromatic mode
  3. Play a string or note on your instrument
  4. Watch the tuner display - tune until the indicator is centered
  5. The tuner shows if you're sharp (too high) or flat (too low)

Features

  • High Accuracy: Detects pitch with precision
  • Real-time Feedback: Instant visual response
  • Frequency Display: Shows exact Hz for reference
  • Works Anywhere: No installation needed, works in browser

Whether you're a beginner learning to tune for the first time or a professional musician needing quick tuning before a performance, this online tuner provides the accuracy and ease of use you need.