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[ audio bench ]
Spectrogram View
Render a spectrogram picture of any audio file or video soundtrack. Online spectrogram viewer, private client-side. Export PNG.
Spectrogram View
Drop an audio or video file here or click to select
MP3 · WAV · FLAC · OGG · Opus · M4A · MP4 · MKV · MOV · and more
One file at a time. Very long files render into one wide image and may take a while.
Error details
FAQ
What is a spectrogram?
A picture of sound: time runs left to right and frequency runs bottom to top, with brightness showing how strong each frequency is.
Can I use a video file?
Yes. The audio track of the video is rendered. A video without an audio track shows an error.
Are my files uploaded anywhere?
No. Rendering runs entirely in your browser - files never leave your device.