BPM Detector
Detect the tempo, duration, sample rate, channels and bitrate of any audio file — on the server
🎵 Upload any audio file and the server will analyze its tempo, duration and technical specs using FFmpeg analysis tools.
⚠️ Please don't close or refresh this page until it's done, or you may lose the result.
💡 Upload speed depends on your own network, not our servers — a slow connection just means the bar moves slower. It'll keep going; no need to retry or worry about being charged twice.
Why people choose us
Server-grade processing
Real FFmpeg on dedicated hardware: every format, big files, phone stays cool — no browser limits.
Auto-deleted in 30 min
Uploads and results are wiped from the server within 30 minutes. Nothing is kept, shared or used for training.
Pay with credits
Each job costs a few credits from your balance — free accounts get daily credits too. No hidden fees.
How it works
- 1
Upload any audio file — format doesn't matter, the server decodes it.
- 2
Click "Analyze BPM" — the server runs ffprobe metadata analysis and FFmpeg BPM detection.
- 3
Read the results on the page: BPM, duration, sample rate, channels, bitrate and codec. Files auto-delete in 30 minutes.
Frequently asked questions
How accurate is the BPM detection?⌄
FFmpeg's bpm filter detects tempo automatically and is generally accurate within ±1-2 BPM for music with a clear, steady beat. Very sparse, ambient or arrhythmic audio (spoken word, sound effects) may not return a reliable reading — the result will show 0 BPM in those cases.
What audio formats can I upload?⌄
Any audio format FFmpeg can decode — MP3, WAV, FLAC, AAC, OGG, WMA, M4A and many more. The server handles formats your browser can't natively play, so you're never limited to browser-supported codecs.
What happens to my file?⌄
The upload is deleted automatically within 30 minutes. The analysis runs entirely server-side and only the result summary is returned — the audio itself is never stored or shared.
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