BPM Detector
Detect the tempo (BPM) of any audio file automatically
Upload Audio File
Supports MP3, WAV, OGG, FLAC, AAC, M4A
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How to Use
Upload Your File
Drag and drop your file or click to browse. Your file stays in your browser.
Adjust Settings
Configure options to get exactly the result you need.
Download Result
Process and download your file instantly — no waiting, no server upload.
Why Use This Tool
100% Free
No hidden costs, no premium tiers — every feature is free.
No Installation
Runs entirely in your browser. No software to download or install.
Private & Secure
Your data never leaves your device. Nothing is uploaded to any server.
Works on Mobile
Fully responsive — use on your phone, tablet, or desktop.
Your Files Stay Private
This tool processes your files entirely in your browser. Nothing is uploaded to any server — your data never leaves your device.
- No server upload — 100% client-side processing
- No data stored — files are discarded when you close the tab
- No account required — use instantly without signing up
How BPM Detection Algorithms Work
Key Takeaways
- BPM detection analyzes periodic energy peaks in an audio signal to estimate tempo.
- Common algorithms use onset detection, autocorrelation, or spectral flux to identify rhythmic patterns.
- Accuracy depends on rhythmic clarity — strong percussive elements yield the most reliable readings.
Knowing the tempo of a song is essential for DJs, producers, and musicians. BPM detection algorithms analyze the audio waveform to identify recurring rhythmic patterns and calculate the tempo. This browser-based tool processes your audio files locally to detect BPM without uploading anything to a server.
60–180
Typical BPM range in music
Common Use Cases
DJ Set Preparation
Determine the BPM of tracks in your library to plan smooth transitions and beatmatching between songs during a set.
Music Production Sync
Find the exact BPM of a sample or reference track to set your DAW project tempo for remixing or sampling.
Workout Playlist Curation
Sort music by BPM for workout playlists — 120 BPM for jogging, 140+ BPM for high-intensity intervals.
Practice Along With Recordings
Detect a song's BPM, then set your metronome to that tempo for practice sessions.
BPM Detection Tips
Songs with clear, consistent drums produce the most accurate readings. Ambient or rubato music may give unreliable results.
If detected BPM seems half or double the expected value, the algorithm may have locked onto half-time or double-time feel.
For live recordings with tempo variation, the detected BPM is an average — individual sections may differ.
Analyze at least 15–30 seconds of audio for reliable detection. Very short clips may lack enough rhythmic information.
All BPM analysis is performed entirely in your browser. Your audio files are processed locally and never uploaded to any server.