BPMKeyFinder is a browser-based tool that lets DJs and producers verify tempo, musical key, and Camelot code by uploading tracks directly in your browser. Built on Essentia.js, it provides precise analysis that is fast, private, and easy to use, without the need to install desktop software. The in-browser approach ensures your files are processed securely and privately, while delivering professional results suitable for harmonic mixing and track planning.

Key features include:

• Accurate BPM detection: Quickly determine tempo with high precision suitable for professional sets and seamless beatmatching.
• Key detection with Camelot mapping: Detections are translated into Camelot wheel notation for intuitive harmonic mixing and song selection.
• Private, browser-based analysis: All processing happens locally in your browser, helping keep your audio files and results private.
• High-speed analysis: Optimized to deliver fast results so you can analyze multiple tracks in quick succession during editing or live preparation.
• Supports various audio formats: Upload and analyze common formats (e.g., MP3, WAV) with instant results for convenient workflows.

BPMKeyFinder provides a practical, browser-first solution for anyone who needs reliable tempo and key information without installing software or relying on external services. Its Freemium model enables free usage with optional premium enhancements, making it accessible for hobbyists and professionals alike while encouraging a smoother music production and performance workflow.