Tune your acoustic guitar with Fender's free, guitar tuner. Select standard or alternate tunings or customize your own tune for your acoustic guitar.

Easily tune your acoustic guitar with microphone or by ear. This precise acoustic guitar tuner will make your guitar sound perfect.

Tune your guitar online with a microphone! The guitar tuner will determine the frequency of the sound and help you to correctly adjust each string.

Tuning your acoustic guitar has never been easier. To get started, simply click on the virtual guitar picks above. Each one plays the sound of a perfectly tuned string. Start with the low E string …

Just use our online guitar tuner to fine tune your acoustic, bass, electric, or ukulele. More in our guide on how to tune your guitar.

Our tuner uses the built in microphone on your laptop or mobile device to detect the frequency of each string on your guitar as you play each note.

Free online guitar tuner app - tune your guitar instantly using your microphone. Works for acoustic, electric & bass guitars. Standard, Drop D, and 30+ tunings. No download needed.

Tune your guitar instantly with the free Online guitar tuner by GuitarTuna. No sign-up required — fast, accurate, and easy tuning for all skill levels!

Tune your guitar, bass, ukulele, or mandolin with Acousterr's free online tuner. Customize tunings for perfect sound. Quick, accurate, and easy-to-use!

The Tuner is Free, Accurate, Mobile-friendly, working directly in the Browser - no need to download. In addition, there are sounds of Guitar strings.