How to Find the BPM of a Sample (Instantly)
Detect the exact tempo and key of any song or loop for free.
Open BPM FinderInstant Analysis • Key Detection Included
Why BPM Matters for Producers
Whether you’re flipping a sample, mixing two tracks as a DJ, or just trying to vibe with a beat, knowing the BPM (Beats Per Minute) is critical. If your sample is off-grid, your drums will sound chaotic. If your DJ transition isn’t beat-matched, the dancefloor clears out.
Traditional methods involved tapping a button repeatedly or trying to line up waveforms visually in a DAW. But modern algorithms can “listen” to the transients of a song and calculate the tempo with mathematical precision in milliseconds.
How to Detect BPM Online
Load Your Sample
Head to our BPM & Key Finder. You can upload an entire song or just a short drum loop. Supports MP3, WAV, and OGG.
Instant Analysis
Within seconds, you’ll see the BPM (e.g. 128 BPM) and the Musical Key (e.g. C Minor).
Tap Tempo (Optional)
Working with a drifting tempo? Tap your spacebar to the beat and we’ll calculate the average speed.
Bonus: Key Detection for Mashups
Beyond tempo, the tool identifies the Camelot Key of your audio — a game-changer for DJs making harmonic mixes or producers ensuring their 808s are in tune with their samples.