Welcome to the Ricmedia Online Guitar Tuner! Keeping your guitar in tune is very important even if you don't play in a band, your ear needs to be trained to recognize pitches in standard tuning. Grab your guitar and start by playing the open E sixth string, that's the thickest one, then click on the corresponding button to hear the right pitch and tune your string to it. Simply repeat the process for every other string until your fully in tune. Press the stop button or space bar on your keyboard to stop all sounds.