Online Instrument Tuner

Guitar, Bass & Ukulele Reference Notes

1st (Thin)E329.63 Hz
2ndB246.94 Hz
3rdG196.00 Hz
4thD146.83 Hz
5thA110.00 Hz
6th (Thick)E82.41 Hz

What we do

Key Features

  • Multi-Instrument: dedicated modes for 6-String Guitar, 4-String Bass, and Ukulele.
  • Alternate Tunings: Instantly toggle between Standard, Drop D, and Half-Step Down (Eb).
  • Precision Audio: Uses exact decimal frequencies (e.g., 82.41Hz) for professional accuracy.
  • Client-Side Privacy: Sound is generated in your browser; no microphone access required.
  • Triangle Wave Tone: Custom waveform cuts through string noise better than sine waves.
  • Hands-Free Loop: Click once to play a note continuously while you tune.

How do I use it?

It's simple: Step 1: Select your instrument (Guitar, Bass, or Uke). Step 2: Choose your tuning style (e.g., Drop D). Step 3: Click a string button to hear the reference note.

Why tune by ear?

Unlike microphone tuners that get confused by background noise, reference tuning helps you develop your musical ear and works perfectly even in loud environments.

Is this tool free?

Yes, this tool is 100% Free. There are no limits on usage. It is a lightweight, instant alternative to installing heavy tuner apps.

Device Compatibility

This tool works on all devices including iPhones, Androids, Tablets, and Desktop computers. No installation or microphone permissions needed.

Privacy & Security

Your privacy is our priority. Since this tool runs Client-Side (in your browser) using the Web Audio API, we never record your audio.