Upload audio or tap along to measure beats per minute. This free song BPM finder runs entirely in your browser — your files never leave your device.
A song BPM finder measures the beats per minute (tempo) of a track so you can sync mixes, sample loops, or catalog your library. Our song BPM finder lets you drop a file, read the BPM, and move on — no signup required.
Whether you need a quick tempo check for one MP3 or batch tags for a folder of demos, analysis stays on-device. No account, no cloud upload — just an accurate song BPM finder you can open anytime.
How a browser-based song BPM finder analyzes your audio — no uploads, no servers
Web Audio API decodes your file on-device into a normalized audio buffer. Nothing is sent to a backend.
Proven beat-detection algorithms scan onset patterns to estimate tempo candidates from your track.
Results include BPM, precise tempo, confidence score, and first-beat offset.
Close the tab and your audio is gone. Your masters and demos stay on your machine.
Everything you need from a modern song BPM finder
Dual-algorithm analysis with confidence scoring — powered by the bpm-finder library DJs already trust.
MP3, WAV, FLAC, AAC, OGG, and M4A — the formats DJs and producers actually export.
Queue up to 20 tracks and export CSV for your library or set prep.
No file handy? Tap along to streaming audio or a live performance to estimate BPM.
No account, no paywall, no usage limits on the core analyzer.
100% client-side processing. A song BPM finder should respect your audio — ours never uploads it.
A song BPM finder analyzes audio to estimate beats per minute. Upload a track or tap tempo in your browser and get BPM plus a confidence score — no server upload.
Most steady-tempo tracks return reliable results with a confidence score. Variable-tempo songs or long intros may score lower — use the ÷2 and ×2 buttons if the result sounds like half or double time.
MP3, WAV, FLAC, AAC, OGG, and M4A. Files must be under 50 MB. Decoding depends on your browser's codec support.
No. Analysis runs entirely in your browser using the Web Audio API. We never receive, store, or transmit your files.
Use tap tempo when you don't have a file handy — for example, when listening to a stream, radio, or live DJ set. Tap steadily for at least four beats.
Up to 20 files per batch in this MVP. Files are processed one at a time to keep the UI responsive.
Drop a track above and get BPM in seconds with our free song BPM finder.