# Tune your guitar with the microphone

> Play one string at a time. The needle shows how far the note is off, in cents.

Tune a guitar, bass, ukulele or violin in your browser with the microphone. Chromatic and string modes, A4 from 430 to 450 Hz. Nothing is sent.

- Tool: [Guitar tuner](https://fixmint.cc/guitar-tuner)
- Category: [Device checks](https://fixmint.cc/device-tests)
- Fixes: Strings sound out of tune
- Runs in the browser: files and text stay on the device, no sign-up, free.

## How to tune a guitar

1. Press Start microphone and allow access when the browser asks.
2. Pick Chromatic, or your instrument, then play one string.
3. Turn the tuning peg until the needle sits in the mint band and the note lights up.

## Questions

### How accurate is this tuner?

In a quiet room with a clean tone, the reading is usually within a few cents. Background noise, an amp buzz or a loud room lower the accuracy. For critical tuning, check against a reference tone.

### What does A4 = 440 Hz mean?

A4 is the reference pitch that every other note is measured from. Most music is tuned to 440 Hz, but some orchestras and older instruments use a slightly different value, so the setting here can be changed from 430 to 450 Hz.

### What is standard guitar tuning?

From the thickest string to the thinnest: E2, A2, D3, G3, B3, E4. Drop D lowers only the thickest string from E2 to D2.

### Does the tuner send my audio anywhere?

No. The microphone signal is analysed in this page and nothing is recorded or uploaded. The microphone stops when you press Stop or leave the page.

## Related tools

- [Metronome](https://fixmint.cc/metronome): Keeping a steady tempo
- [Tone generator](https://fixmint.cc/tone-generator): I need a pure tone or sweep
- [Speaker test](https://fixmint.cc/speaker-test): Is sound coming from both sides?
- [Microphone test](https://fixmint.cc/microphone-test): Can they hear me?