Voice Key Detector
Sing into your mic or upload an audio file to detect the musical key.
Powered by real-time pitch analysis. 100% free, no data leaves your device.
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Sing or upload audio to detect the key
Your audio never leaves your device. 100% private.
How It Works
1
Sing or Upload
Use your microphone to sing a melody, or upload any audio file (MP3, WAV, etc.).
2
Pitch Analysis
The YIN algorithm extracts the fundamental pitch from your voice in real time with high accuracy.
3
Key Detection
The Krumhansl-Schmuckler algorithm matches your note distribution to all 24 major and minor keys.
Runs entirely in your browser. No servers, no cost, no data collection.