Your Free Online Guitar Tuner

How often have you been in the situations when you didn’t have a tuner in the rehearsal or right before the gig? Whether you have electric, bass, acoustic, or ukulele—fine tune your guitar on the go with our free microphone-based online guitar tuner.

Welcome to the Guitar tuner!

Ready to start?


Online Tuner For Your String Instruments

A mountain of online guitar tuners could be found on the internet, and all of them allow you to tune up your guitar by playing notes and listening carefully to the pitch. What we’ve created (and here's the best part,) is a hands down free online guitar tuner so you can easily tune up your guitar.

Our tuner works through a microphone on your device, and the instrument range you can tune-up with our online guitar tuner tool is endless: acoustic, bass, electric, ukulele, etc. As we didn’t set any limitations for the online guitar tuner, any instrument making a sound on a certain note will be perfectly recognized the same way as the sound of a guitar. However, we’ve created the tool with guitarists in mind and it has been created by guitarists.

Now the only thing you need to do is to open our webpage on your phone and bring your phone to the guitar (if it's an electric or a bass guitar, please put your phone close to the amp cabinet or your combo amplifier) to perfectly tune up your instrument.

Are you new to tuning?

If you are just at the beginning of your road, follow these three easy tips on guitar tuning for beginners.

Tuning Tip #1

Start with a Standard, EADGBE, tuning. Tune up the thickest string—the low E, then go your way to the high E—the thinnest string.

Tuning Tip #2

When tuning a guitar, use your thumb or a pick to play the string but try doing it not too soft or too hard, a firm pluck works the best.

Tuning Tip #3

Sounds too flat? Turn the peg away from you to get sharp and vice versa, turn the peg toward you to go flat if you feel the sound is too sharp.

Standard Guitar String Notes

Please start with the thickest string on your guitar, it is the first line in our tuning table below; and work your way to the thinnest string (the last line in the table.)

How to Tune a Guitar using our online guitar tuner?

To tune your guitar with our free guitar tuner online, please follow these five easy steps:

  1. Please open the web page in your favorite browser from your phone, pc, or laptop (your device needs to have a microphone)

  2. Grant our website with access to the microphone of your device. Usually, your browser will ask you for permission.

    Please note: we don’t record or keep anything transmitting by a microphone, sound processing takes place in your browser and we don’t have access to your data in any way.

  3. Pick the first string and make sure it is configured following the tuning you use.

  4. If numbers on the screen differ up or down, make the necessary adjustments by turning the tuning mechanism of the specified string.

    Tip: we recommend to loosening the string in the first place and then pull it to the desired value. If you pulled a little harder than necessary, don’t try to loosen it back - just loosen it more than necessary and do the other try to pull it accurately.

  5. Please repeat step #4 for every string. After finishing the whole tuning process, check every string one more time and make sure that the guitar is tuned up following the tuning you used.

All Variations Of Guitar Tunings

Our online guitar tuner will help you tune your guitar no matter what tuning you use. For us, there is no difference whether it is open tuning, drop tuning or you are a fan of the classical E A D G B E system: you just need to open our page and allow us to hear your guitar.

If you just found out that there are other tunings in addition to the standard one, you can try all variations of guitar tunings: standard, drop, open tunings. We have prepared several articles that may interest you: what tunings are, how they differ, where they are used, and so on.

Frequently Asked Questions

What is the best online guitar tuner?

There are a lot of online guitar tuners that could be found on the internet, the best are the most simple ones and those that could be used any time. You can use our free guitar tuner online or check for similar solutions as Pro Guitar Tuner, Fender Tuner and others.

Can I tune my guitar online?

Absolutely! 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.

Is there a free guitar tuner app?

There are plenty of them either in AppStore or Google Play, just choose the one that fits you best.

How do you tune a guitar with an electronic tuner?

To tune up your guitar with an electronic tuner, you need either plug your guitar into the tuner (if it is electric) or you can use the tuner's built-in microphone. For most guitars, you just need to turn the tuner on and play a note. The display will show you how close you are to the desired string and which direction to go.