Instrument Tuner

This chromatic tuner uses your device's microphone to detect the pitch of any note you play. It shows you the note name, frequency, and how many cents sharp or flat you are from the target pitch.

How to Use

1. Click "Start Tuner" and allow microphone access when prompted
2. Play a note on your instrument
3. Watch the tuning meter - the needle shows if you're sharp (right) or flat (left)
4. Adjust your instrument until the needle is centered and shows green
5. The cents display shows exact tuning: 0¢ is perfectly in tune

Understanding Cents

A cent is 1/100th of a semitone. The tuning meter shows ±50 cents:

• 0¢: Perfectly in tune (green)
• -10¢ to +10¢: Acceptable tuning for most purposes
• -50¢: Halfway to the note below (flat)
• +50¢: Halfway to the note above (sharp)

Features

• Chromatic Detection: Detects any note, not just specific strings
• Precise Feedback: Shows exact tuning in cents
• Visual Meter: Easy-to-read needle indicator
• Adjustable Concert Pitch: Change A4 reference (default 440 Hz)
• Multiple Instruments: Reference charts for guitar, bass, ukulele, violin
• Real-Time Processing: Instant pitch detection and feedback

Tips for Best Results

• Use in a quiet environment for better accuracy
• Play one string at a time, letting it ring clearly
• Pluck or bow the string with moderate force
• Position your device's microphone close to the instrument
• Tune strings from lowest to highest, and repeat for accuracy
• For guitars, check tuning after playing for a few minutes as strings settle