Free Online Alto Saxophone Tuner
Play a note — see exactly how in tune you are.
Allow microphone access to begin
How to use this tuner
Click Start Tuning and allow microphone access. Play a note — the tuner detects pitch in real time and shows how sharp or flat you are in cents.
The bar spans −50 to +50 cents. Zero is perfectly in tune. The history line shows where you’ve been — useful for spotting whether certain registers consistently drift sharp or flat.
Alto Saxophone (E♭) is already selected — note names match your written part. When you play a written C, the tuner shows E♭: correct for your part, a major sixth below concert pitch.
Default is A440. Tap + / − to match your ensemble — A441–442 is common in orchestras and concert bands.
The alto saxophone is an E♭ transposing instrument: when you play a written C, the concert pitch is E♭, a major sixth below. Saxophone intonation is shaped heavily by embouchure firmness, air speed, and mouthpiece-reed setup. Too relaxed an embouchure or a soft reed tends to produce flat pitch; overbiting or a stiff reed pushes sharp. The upper register — particularly the palm keys (high D through F#) — often runs sharper than the middle register and benefits from a slightly more relaxed embouchure and faster air. Saxophone intonation is also temperature-sensitive: a cold instrument plays flat until the neck and body warm to playing temperature, so let it warm up before tuning seriously. Mouthpiece placement on the neck cork is your primary overall pitch adjustment. The pitch history display helps you identify whether pitch drifts as you cross between registers, or whether specific fingerings consistently sit above or below center — patterns that are easy to miss when you’re also focused on tone and technique.
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