Free Online Guitar Tuner
A free guitar tuner that uses your mic and a live needle display — no separate tuner app, no ads, no clip-on hardware required.
Your browser will ask for microphone access. Nothing is recorded or uploaded — pitch detection runs entirely on your device.
See your pitch, not just hear it
Play a string and watch the needle sweep toward center as you tune, with the note name and cents-off reading updating in real time. It's faster to trust your eyes than your ear alone, especially in a noisy room.
Guitar, bass, ukulele
Standard tuning or otherwise, the tuner listens for whatever note you're closest to and tells you which way to turn the peg. Works the same whether you're tuning a 6-string, a bass, or a uke.
Why it's worth having in one place
- No ads, no separate downloads.
- Works alongside the Metronome and Songwriting Studio without switching tabs.
- One less app open while you practice.
Embed this tuner on your own site
Free to embed, no sign-up or attribution beyond the small credit line built into the widget. Paste this into any page:
Related lessons
Now that you're in tune
The full app puts the same tuner next to a live fretboard, a metronome, chord and scale lookup, and a teacher you can just talk to. Free to start.
Open the free app →