Audio Waveform Viewer

Decode audio locally and draw a zoomable waveform summary in Canvas without uploading the file.

Choose audio file

View start (%)

View width (%)

—Duration

—Peak

—RMS

—Rate · channels

Choose an audio fileCanvas displays channel 1; peak and RMS statistics use all decoded channels.

How to use this Audio Waveform Viewer

View the waveform, duration, peak level, RMS level, channels, and sample rate of an audio file. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.