BPM Finder

BPM Finder answers a question musicians and DJs hit constantly: what's the tempo of this track? Drop in an audio file and you get BPM with half-time and double-time options, plus key, meter, a waveform and beat positions. The standout detail is that analysis runs entirely in the browser — your audio stays on your device, which matters if you're working with unreleased material. It's free with no account needed. After analysis, an optional AI Music Agent turns the detected signals into an editable music brief for generating original music, which is the product's upsell path. The honest caveats: tempo detection on rubato, live or heavily swung material is never perfect, and the AI generation step is a separate product from the (genuinely free) analysis. For quick, private tempo and key checks, it's one of the cleaner implementations around.