Skeletune

BPM Finder

Measure the tempo of a track in your browser and switch between half, normal and double time.

Max 100 MB · max 15 minutes · MP3, WAV, M4A, FLAC, OGG

Nothing is uploaded. The file is decoded and measured inside your browser.

About this tool

BPM Finder estimates the tempo of a track from its onset pattern and draws a beat grid from that tempo, so DJs and producers can line up loops, edits and transitions.

The measurement runs in your browser: the file is decoded with Web Audio and measured once, and the same reading is reused by every other SKELETUNE tool. Your file never leaves your machine.

How it works

  1. 01

    Load a file

    Drop an audio file and the tempo reading appears after a short local measurement.

  2. 02

    Check the grid

    Read the rib-like beat ticks placed from the measured tempo, with every fourth tick drawn longer.

  3. 03

    Choose a tempo

    Switch to half or double time if that is the tempo your library expects; nothing is measured again.

Questions

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