Tempo in BPM
A BPM detector measures how many beats happen per minute, giving you a single tempo number to plan mixes, edits and routines.
BPM DETECTOR
Detect song tempo in your browser
Drop an audio file to read precise BPM in seconds — no uploads, no signups, fully private.
Tempo --
Energy --
Danceability --
BPM DETECTOR
Browser-Native Tempo Detection
A precise, private and instant BPM reading — without installing software, signing up, or uploading to a remote server.
Overview
Precise BPM Readings
Our BPM Detector pinpoints the dominant tempo of any audio in 2–4 seconds and shows confidence so you know when a track has rubato or shifting tempo.
Privacy
Stays on Your Device
Audio analysis runs in WebAudio with no server uploads — perfect for unreleased mixes, client demos and confidential master files.
Workflow
DJ-Ready Output
Read the BPM, copy the value to your DJ software, and pair it with our Key Detector for full Camelot harmonic mixing.
What Is a BPM Detector?
Beat Tracking
More advanced than just BPM — beat positions are detected so you can sync video cuts and animation frames.
Private by Default
Your tracks never upload. Everything runs locally so the tool is safe for unreleased and confidential audio.
Detector Features
Speed
- Sub-second detection on most tracks.
- Batch-ready — load multiple files in tabs.
- Instant access — no signup required.
Accuracy
- Robust on noisy live recordings.
- Confidence scoring per track.
- Half / double tempo correction toggle.
Privacy
- WebAudio in-browser analysis.
- Zero uploads, zero retention.
- Free unlimited usage.
Why DJs and Editors Choose Our Detector
Instant
Get BPM in seconds.
Private
No file uploads ever.
Accurate
Beat-aware confidence scoring.
Free
No subscription, no daily limits.
Copy / Paste
Quick copy to clipboard for DAW use.
Pairs With Key Tools
Use alongside our Key Detector for harmonic mixing.
FAQ: BPM Detector
Is the BPM detector free?
Yes — fully free, with no daily caps or login required.
Does it work offline after loading?
Yes. Once the page is loaded the detector runs in your browser without an internet connection.
Are my files uploaded?
No. Analysis is browser-side using WebAudio.
What if my track has tempo changes?
Confidence scoring will flag low-stability sections — for fully variable tempo tracks consider segment-by-segment analysis.
Can I detect BPM from a microphone?
Yes — the Beat Finder includes live mic-input detection for tap-tempo workflows.