BPM Viewer

The BPM Viewer analyzes audio files to extract tempo information for music professionals and content creators. It supports common formats and returns a clear BPM value along with a confidence score. By examining rhythm onsets and timing intervals, the tool provides an objective tempo estimate that can be used for beatmatching, tagging, and automation workflows.
The underlying approach uses beat-tracking techniques such as onset strength, autocorrelation, and histogram-based tempo estimation to identify the most consistent beat interval. When per-segment analysis is enabled, the tool also reports tempo for defined track segments, enabling tempo-shift awareness across a mix.
Users benefit from faster tempo discovery, improved synchronization decisions, and consistent metadata generation for catalogs and libraries. The tool differentiates itself with a robust handling of diverse genres, a transparent confidence metric, and options to export results as JSON or CSV for archival or integration with production pipelines.