Tune your guitar, violin, trumpet, bass or any instrument in real time using your microphone — right in your browser, no install needed.
Tip: allow microphone access and play a note — the needle shows if you are in tune.
Frequently Asked Questions
The Full Partituras online tuner is a free chromatic tuner that works directly in your browser using your device microphone — no app, download or sign-up required. It detects the pitch of any instrument in real time (guitar, bass, violin, ukulele, trumpet, saxophone, voice and more) and shows the exact note and frequency in hertz, calibrated to the international A = 440 Hz standard. The needle tells you instantly whether the note is flat or sharp, and everything is analyzed privately on your device: no sound is ever recorded or uploaded. It works on Windows, Mac, Linux, Android and iOS, which makes it a practical replacement for a physical clip-on tuner at home, in rehearsals or on stage.
Everything you need to know about the online Tuner
What is the online tuner?
A free web tool that detects your instrument's pitch in real time using your device microphone. It shows the exact note and frequency (Hz) so you can tune accurately, right in your browser with no install.
Which instruments can I tune?
Any acoustic or electric instrument: guitar, bass, violin, viola, cello, ukulele, trumpet, trombone, saxophone, flute and more. The tuner recognizes the pitch regardless of the instrument.
How do I use the tuner?
Allow microphone access when the browser asks, play a note on your instrument and watch the needle: when it's centered on the right note, you're in tune. Adjust until the needle sits in the middle.
Why does it need the microphone?
The tuner "listens" to your instrument through the microphone to analyze its frequency. Nothing is recorded or sent: all the analysis happens on your device, privately.
How accurate is it?
It uses high-precision pitch detection (the aubio algorithm) calibrated to A = 440 Hz, the international standard. Great for both beginners and demanding musicians.
Does it work on phone and tablet?
Yes, it works on Windows, Mac and Linux, plus iOS and Android phones and tablets, right in the browser. For best results use a quiet room and an updated Google Chrome.
Is the tuner free?
Yes, completely free and no sign-up. Tune your instruments as many times as you want, with no limits.
Do I need to install anything?
No, it runs in your browser with no programs or plugins. Just a device with a microphone and internet, and a modern browser (Chrome, Firefox, Safari or Edge).
