This online tool is a guitar tuner by hot frets. It is an easy and relatively fast way to tune your guitar to standard. The layout of the program is very straight forward. The first string is the thinnest string on your guitar and the 6th being the thickest. To tune your guitar click on the string you want to tune and the note will ring out. While it's doing that tune your guitar to the pitch. Do this for all the strings on your guitar and you’re tuned up and ready to play.
If you looking for information on how to tune your guitar manually, then we have a tutorial on our blog: How to tune your guitar.