Tuner
Play a note. The tuner shows the nearest pitch and how many cents you are off.
Nothing is uploaded. Everything runs in this tab with @audio/pitch, @audio/note, @audio/mic.
A chromatic tuner with nothing to install
The tuner reads your microphone with @audio/mic, estimates pitch with @audio/pitch (YIN) and names the note with @audio/note. The needle shows cents from the nearest semitone; green means within 5 cents. Works on phones and laptops in any modern browser.
Standard tunings
- Guitar: E2 A2 D3 G3 B3 E4. Drop D: D2 A2 D3 G3 B3 E4
- Bass: E1 A1 D2 G2
- Ukulele: G4 C4 E4 A4
- Violin: G3 D4 A4 E5. Viola and cello: C G D A
Reference pitch
Most music uses A4 = 440 Hz. Orchestras often tune to 442 or 443, baroque ensembles to 415, and some players prefer 432. Set the field and every reading follows.
Questions
How do I tune a guitar with it? Standard tuning is E2 A2 D3 G3 B3 E4. Play one string at a time, let it ring, and turn the peg until the needle sits in the green zone (within 5 cents).
Which instruments does it work for? Anything that produces a clear pitch: guitar, bass, ukulele, violin, cello, brass, woodwinds, voice. Detection uses the YIN algorithm on a 4096-sample window.
Can I change the reference pitch? Yes. A4 defaults to 440 Hz; set 432, 415 (baroque) or 442 to 443 (many orchestras).
Is my microphone recorded? No. Audio is analysed in the tab and discarded. Nothing is stored or sent.