Free Online Guitar Tuner
Detect guitar string pitch in real time with your microphone and tune accurately. Free online guitar tuner.
Tap Start and allow microphone access, then pluck a guitar string. All analysis runs in your browser only.
Detected note
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Listening…
Current frequency
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Target frequency
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Difference
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Tuning gauge
Standard guitar tuning (E A D G B E)
Microphone audio is never uploaded; analysis runs locally in your browser.
Frequently asked questions
Is the guitar tuner free?
Yes. Pandam Util's guitar tuner is completely free with no sign-up required.
Can I use it on mobile?
Yes. Allow microphone access on iPhone Safari, Android Chrome, or other mobile browsers to tune your guitar.
Is microphone data stored?
No. Audio is analyzed in real time in your browser only. Nothing is uploaded or stored on a server.
What is standard guitar tuning?
Standard tuning from the 6th string to the 1st is E2, A2, D3, G3, B3, E4 at A4 = 440 Hz.
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