Free Key & BPM Finder
Upload an audio file to instantly detect its musical key, tempo (BPM), and duration. No signup required.
Drag and drop your audio file here
MP3, WAV, or FLAC (max 100MB)
Why Use Our Key & BPM Finder?
Highly Accurate
Advanced AI algorithms detect musical key and BPM with professional-grade accuracy.
Multiple Formats
Works with MP3, WAV, and FLAC audio files up to 100MB and 15 minutes long.
Privacy First
Your files are processed securely and automatically deleted. Your music stays private.
How It Works
1. Upload Your Song
Drag and drop your audio file or click to select. We support MP3, WAV, and FLAC.
2. AI Analysis
Our AI analyzes the audio to detect the musical key and tempo in seconds.
3. Get Results
View the detected key, BPM, and duration instantly. Copy results with one click.
Perfect For
DJs & Mixing
Match keys and BPMs for seamless harmonic mixing in your DJ sets.
Music Production
Find the key and tempo of samples to create harmonically compatible tracks.
Musicians
Quickly identify song keys to play along or create cover versions.
Karaoke Creators
Know the key before creating karaoke versions or transposing songs.
Frequently Asked Questions
Got questions? We've got answers. If you have any other questions, please feel free to reach out to us.
- Yes! Our key and BPM finder is completely free with no hidden costs. No signup or credit card required.
- We support MP3, WAV, and FLAC audio formats. Maximum file size is 100MB and maximum duration is 15 minutes.
- Our AI uses advanced algorithms to detect musical keys with high accuracy. It identifies both major and minor keys across all 12 notes.
- BPM (Beats Per Minute) measures a song's tempo. Knowing the BPM is essential for DJs to beatmatch, producers to sync samples, and musicians to set the right practice tempo.
- Yes, your files are processed securely and automatically deleted from our servers. We don't store or share your music.
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