Guitar tuner app free. Online guitar tuner mic


Download free Android version of acoustic guitar tuna:

Get Android Version on Google Play

This chromatic tuner helps you tune guitar with microphone. You can also use it for other instruments as web tuner shows you playing notes from chromatic scale. The app setted up with A=440hz (other settings wil be added soon).

You should allow access to the microphone and your browser should support Adobe Flash. If your mic. correctly setted up you will able to see playing notes, estimated frequencies and deviation. If you see only black screen, please check whether you gave acces to your microphone(Google Chrome for example shows additional popup on top of the browser). Tunner shows playing notes only if volume highter than minimum value. This have been made to reduce noice effects, so if your mic too quiet you can setup it by moving right slider down.
If you see some strange results try to reload page.

I will support this app by adding new feautures. So am open for suggestions and requests. I am interested in developing tools that can help learning harmonica, guitar and other instruments.



  1. Mira Martini

    Can I please cite your website for my experiment? To properly cite it I would need a full name and year of publishing… would that be alright?

  2. mira

    Hi um i’m using your very useful tuner here for a math experiment do you by any chance know the percentage error of your program? (Hz ± 0.0something Hz)
    It’d be a great help if your response was timely!!

    • bobrokrol

      Algorythm has has limittios of accuracy depends on frequency. High freqncies is less accurate. I do not remember what exacly relation and it depends on wich window size is used for FFT in current version. It’s algorythm limitations and of course there are errors related to noice and microphone quality. If we talk about algorithm limitation than accuracy could be calculated for each frequency according to formulas it decreases for highter frequencies

  3. OleOle

    This is one of the easiest tuners I’ve ever seen. I am new to guitar so if it’s out of tune hard to learn. This tuner works wonderfully!!

  4. Mishel

    Thanx for ur guitar tuner, it help me a lot to tune guitar correctly with the correct pitch of strings sound and Its very easy to correct your guitar string

  5. Скачать книги

    Здравствуйте! Tunerr is a revolutionary online tuner which tells you what note you are playing and whether it is in tune. It requires Flash Player 10.

  6. microMax

    I had problems with embeded microphone, accuracy was worst and tuner showed wrong notes. But then I tried USB mic and tunning became perfect! Thanls for good online tunerr!

  7. bearbbebebe

    This guitar tunner is awesome . Simple and accurate It made my work easier and tuning through this is perfect. After I tried it my hair started growing faster and muscules become bigger!

  8. blues-player

    My guitar was out of tune for a years. But now after I’ve tunned it with this online tool am happy and ready for a new impressions.

  9. alexeandros

    This tuner doesn’t work on my mac pro. But other online tuners( I tried tunerr and proGuitarTuner) doesnt work too. What is the problem and how It could be solved?

    • Hosting

      This site enables you to tune your guitar for free right in your browser. The tuner is chromatic, accurate and automatic.

  10. bigbadabum

    doesn’t work. I’ve seen microphone dialog and accepted access to the mic but tuner doesn’t show anything 🙁

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