Tune your guitar by eye, without buying a tuner
Your guitar drifts out of tune, the clip-on tuner's battery is dead, and you just want to get the strings right. Musical Note Tuner listens through your computer's microphone and shows you how close each note is, using a large music note as the display.

Quick facts
- Vendor: Guitar Tuners (123 Guitar Tuners)
- Price: Free
- Input: Your computer's microphone
- Type: Online tuner you can use in the browser
Key features
A music note that moves as you get closer to the right pitch
The note graphic in the center swings back and forth as you approach the target note. You can see at a glance whether you are close.
Green feedback when the note is right
When you play the correct note, the music note turns green. You don't have to read a scale to know you've hit it.
Free, with no tuner to buy
The vendor offers it as a free online guitar tuner, so you can skip the music store for basic tuning.
Embed it on your own web page
The vendor invites you to embed the tuner on any page you choose. It gives source code below the tuner for this.
Who it's for
It suits you if you play guitar at a computer and want a quick, free tuning check. It also suits you if you run a music-related web page and want a tuner on it. The playful look is aimed at people who like a visual display more than a plain meter.
Pros and cons
- Pro: Free to use.
- Pro: Needs only a microphone.
- Pro: The note turns green when you're right, which is easy to read.
- Pro: It can be embedded on a web page.
- Con: It relies on your computer's microphone, so a noisy room can get in the way.
- Con: The page shows an Adobe Flash player prompt, so the tuner may need Flash in your browser.
- Con: The vendor describes it as simple. It is not a full-featured tuning suite.
FAQs
Does it cost anything?
No. The vendor describes its tuners as free.
What do I need to use it?
A computer with a working microphone. The tuner uses it to hear the note you play.
How do I know I'm in tune?
The music note in the center turns green when the correct note is played.
Can I put it on my own site?
Yes. The vendor invites you to embed it and provides source code for that.
System requirements
The vendor lists no specific requirements. You need a microphone, and the page's Flash player prompt suggests you may need Flash.