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Online Tuner: Tune Your Instrument Online With OnlineTuner.org

OnlineTuner.org provides you with a high-precision and easy to use online tuner that lets you tune your instrument online hassle-free. Nothing else is needed than your computer, smartphone or tablet's internal microphone. We get the note frequency from your instrument and let you know whether you should tune it down or up according to the desired note. OnlineTuner.org offers a tuning settings optimized for a wide range of instruments - mainly string instruments. We are also proud to be the most accurate online tuner on the market.

A4
(440 Hz)
G#4
A#4
Current frequency: 440 Hz
Tune up ↑ Tune down ↓ In tune |
Wait... Play!
Start tuner
Stop tuner

Advanced settings
Confidence threshold:
Noise gate (dB):
Save settings
Reset settings

đŸŽ¶ Tune by ear đŸŽ¶

-1 Octave
Click on a note
Stop playing
+1 Octave

đŸŽ¶ Discover our collection of online tuners đŸŽ¶

Whatever the instrument that you're looking to get in tune, we have got you covered. Our online tuner app covers lets you know of all of its strings or its desired note. Hence, you can hear what each an every one of your strings should sound like and tune your instrument accordingly. We also let you know how far you are from the optimal tuning, so that tuning your instrument is hassle-free.

Further, we calculate frequencies differently according to the specific requirements of all the instruments to provide you with the best tuning experience online. For instance, tuning a violin should not be envisioned the same way as tuning your guitar. Doing so wouldn't sound right.

How to use OnlineTuner.org to tune your instrument online?

We tried to simplify the process of tuning your instrument online without compromising on the accuracy of our online tuning app. To tune your instrument online, follow these simple steps:

  1. Click on one of the instruments on the list above, or simply go on OnlineTuner.org and use our generic online tuner that can provide high precision tuning for all sorts of instruments.
  2. Take your instrument and prepare to play. Place yourself in front of the device - laptop, smartphone or tablet - you're using to access OnlineTuner.org and make sure that the environment is quiet enough. This is how our online tuner will achieve its best results.
  3. Click the Start Tuner button, and allow OnlineTuner.org to access to your microphone. This is a very important step. If you don't allow us to use your microphone, we won't be able to tell you how to tune your instrument.
  4. Start playing a note and watch carefully at the meter. Our online tuner will pick the closest note and let you know whether you need to tune up or down to reach it. On our specific instrument tuners, we also let you know how close you are from the closest string(s) or the required note.

    You can also scroll down to directly hear the strings or the notes that you have to tune!

And that's it! Your instruments should be in tune and ready to play. Many thanks for using OnlineTuner.org. Don't forget to share our website if you appreciate it, and to allow other people to use our online tuner.


What are the settings available on OnlineTuner.org's online tuner?

We wanted to make your online tuning experience as pleasant, easy and as accurate as possible. This is why we filled our online tuner with several settings that will allow you to optimize your tuning experience. Here they are.

Set the frequency of A4 to calibrate the online tuner

The first setting of our online tuner is rather common, but also extremely important. We compute all the notes according to a 440Hz A4. We know that some people prefer to tune their instruments using a 442-hertz A4, or that some others find it more melodious with a 432-hertz A4. Whatever your preferred value, you can set it yourself!

Augment or decrease the sensitivity of the online tuner

There are three ways you can change the sensitivity of our online tuner app. First, by turning up your microphone input volume, second by playing with our algorithm's probability, and third, by setting a noise gate.

Playing with our algorithm's sensibility: Our online tuner uses McLeod's pitch detection method to compute the frequency of the notes that you play. If you click on the "Advanced settings" button, you can increase or decrease the probability threshold of the pitch detection algorithm. The higher it is, the less notes our online tuner will detect, but the results are more likely to be accurate. The lower it is, the more notes it will detect, but the lower the precision will be.

Setting a noise gate: Sometimes, you won't find yourself in the best environment to tune your instrument. Ideally, you'll be in a quiet room, but if there is too much background noise, you may want to set a noise limit under which our tuner won't process the sounds. To do that, click on the "Advanced settings" button and play with the Noise gate slider.

Save OnlineTuner.org as an app

If you like our online tuner, you can save it as an app on your device to access it in only one click. You can only do this on some specific web browsers based on Chromium - i.e., Google Chrome or Microsoft Edge. On the top left of the online tuner, there will be a "Save as app" button that you can click on to save our online tuner as an app. It's as simple as that!

Save the settings or the online tuner

Your might want to save the settings of our online tuner so that you can find them back on your next visit on OnlineTuner.org. To do that, simply click on the "Save settings" button. This will create a cookie on your device. We will simply access it to retrieve your settings. Absolutely no personal data will be stored on it. In case you wish to start fresh, click on the "Reset settings" button.


Can I use your online tuner for non-standard tunings?

Of course! OnlineTuner.org's online tuner is not limited to the dreaded standard EADGBE guitar tuning! We also have a wide range of non-standard guitar, ukulele or bass tunings. you may find a list of all of them below.