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Simple Guitar Tuner

Super simple standard-tuning guitar tuner (E A D G B E).

Detected
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TightenCenterLoosen
Pluck one string at a time
Pitch trend
E2
82.4Hz
A2
110.0Hz
D3
146.8Hz
G3
196.0Hz
B3
246.9Hz
E4
329.6Hz

Microphone audio is processed locally in your browser.

Simple Guitar Tuner: Guide

Intent
Use this super simple guitar tuner online for standard tuning (E A D G B E) with microphone input and clear sharp/flat feedback.
What it does
Listens to your microphone, detects pitch, and matches it to the nearest standard guitar string while showing cents offset.
Key features
Standard tuning (E2 A2 D3 G3 B3 E4), Sharp/flat/in-tune feedback, No account required
Privacy
Microphone audio is processed locally in your browser and is not uploaded.
Best for
  • Quick tuning before practice
  • Players who want a minimal tuner without extra controls
  • Basic standard tuning checks on desktop or mobile
Why this tool
  • Very small UI: start, pluck, tune
  • Shows nearest string and cents deviation
  • Local processing, no recordings uploaded

How to use

  1. 1Press Start tuner and allow microphone access.
  2. 2Pluck one open string at a time.
  3. 3Follow the sharp/flat feedback until it shows In tune.
  4. 4Press Stop tuner when finished.

Common mistakes

  • Background noise can make readings unstable.
  • Plucking multiple strings at once confuses pitch detection.
  • Very short plucks may not give a stable reading; let the note ring briefly.

Examples

Tune low E string
Target: E2 (82.4 Hz) If too flat: tighten string If too sharp: loosen string
Quick pre-practice pass
Tune in order: E2 -> A2 -> D3 -> G3 -> B3 -> E4