BPM & Key Finder
Instantly detect the tempo, musical key, and Camelot notation of any audio file. Perfect for DJs and producers.
Drop your audio file here
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MP3, WAV, FLAC, OGG, M4A • Max 100MB
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Frequently Asked Questions
What is BPM and why does it matter?
BPM (Beats Per Minute) is the tempo of a song. DJs use BPM to beatmatch tracks and create seamless mixes. Producers use it to ensure elements sync correctly in their projects.
What is the Camelot wheel?
The Camelot wheel is a tool that helps DJs mix harmonically compatible tracks. Keys are arranged in a circle where adjacent positions blend well together. For example, 8A and 8B, or 7A and 9A are compatible.
How accurate is the detection?
Our BPM detection is highly accurate for electronic music and most pop songs. Key detection uses the Krumhansl-Schmuckler algorithm, which is effective for songs with clear harmonic content. Complex or atonal music may yield less accurate results.
Is my audio data private?
Yes, absolutely. All analysis happens entirely in your browser using WebAssembly. Your audio files are never uploaded to any server. We don't store or access your files in any way.