About Our Piano Tuner

Why Choose Our Piano Tuner?

Our free online piano tuner is designed specifically for piano players. With 6 built-in tuning presets based on different reference pitches, reference tones for each octave, and automatic pitch detection, it's the easiest way to check your piano's tuning — whether you're a beginner or an experienced player.

Key Features

• 6 piano tuning presets: Standard A440, Baroque A415, Concert A442, and more
• Reference tones spanning the full piano range
• Auto-detect which note you're playing
• Real-time pitch detection with cents deviation display
• Mobile-friendly interface that works on any device
• No installation required — works directly in your browser
• Free to use with no hidden costs

How It Works

Our piano tuner uses an autocorrelation-based pitch detection algorithm to accurately identify the frequency of the note you play. It then matches the detected pitch to the closest note in your selected tuning standard and shows you exactly how many cents sharp or flat you are from the target note. All audio processing happens locally in your browser — nothing is recorded or sent to any server.

Our Mission

We believe that every piano player deserves access to a high-quality tuning tool. That's why we've created a free, accessible piano tuner that works for everyone — from beginners learning their first scales to seasoned players exploring different tuning standards.