Waveform & Spectrogram Viewer
Renders an audio file as a zoomable waveform and a spectrogram (time vs frequency heat map), with peak, RMS and duration statistics. Useful for spotting clipping, silence, hum and bandwidth limits.
Runs 100% in your browser — your files never leave your device.
Read the full guide to this tool
Notes
- The spectrogram uses a short-time Fourier transform with a Hann window; brighter means more energy at that frequency and time.
- Everything runs locally in your browser; your files are never uploaded to any server.
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