Tuner: Guitar, Violin & Bass

A calm, accurate chromatic tuner for every instrument. Pick your A4 (432/440/442). The screen turns green the moment you're in tune. 100% free, no ads.

Tuner is a clean, accurate chromatic tuner for every instrument — guitar, bass, violin, cello, ukulele, mandolin, brass, woodwinds and voice.

Just play a note. Tuner listens through the microphone, shows the nearest note and how many cents you're off, and the whole screen turns green the instant you're in tune. No clutter, no menus to learn — a calm, focused tuning experience.

WHY YOU'LL LIKE IT • Truly chromatic — detects all 12 notes across a wide range • Instant, stable readout with a smooth needle • The screen turns green when you're in tune — glance and go • Adjustable reference pitch A4: 432, 440, 442 or anything from 415–466 Hz • Light & Dark themes • Works in 7 languages

100% FREE No ads. No account. No paywall. Just a tuner that works.

Made by musicians, for musicians.