Key and BPM Finder

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Dropped a small free tool today: find key, BPM, and Camelot from one MP3/WAV in the browser. Why I made it: most "upload your track" key finders want the file on their server. Mine runs locally — no signup, audio stays on your device. One file at a time (up to 40 MB / 10 min). You can listen, flip half/double tempo, tap tempo, correct the guess, then copy the result. Honest caveat: it's an estimate. Drums, noise, retunes, and tracks that change key/tempo will confuse it — same as e...