Tuning notes for your guitar, bass, ukulele and more.
Welcome to the most comprehensive online tone generator for musicians and audio engineers. Our tool provides
crystal-clear reference tones to help you tune guitars, basses, ukuleles, violins, and other string instruments
with professional accuracy. Whether you're setting up for practice, recording, or live performance, these
scientifically calibrated tones will ensure your instruments sound their best.
Why Use Our Tone Generator?
• Studio-grade audio quality at precise frequencies
• Works across all devices - desktop, tablet, or mobile
• No software installation required - completely web-based
• Save tones as WAV files for offline use
• Perfect for tuning by ear or testing audio equipment
Standard Concert Pitch: A4 = 440Hz (International tuning standard) Middle C Frequency: 261.626Hz (Central reference note on pianos)
Our tone generator produces pure sine waves without harmonics, making it ideal for precise instrument
calibration and audio testing. For best results with bass frequencies, use quality headphones or speakers
with good low-end response.