Audio Waveform Viewer
Explore the waveform, locate audio segments and mark important moments. View separate channels, drag both selection handles to loop audio, and export a waveform PNG.
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About this tool
Upload audio and read its waveform. Play, zoom or drag either selection handle to loop a segment. Add markers at the playback position, then drag them or enter precise times. Export the entire waveform or the selected range with your choice of dimensions, colors, transparency, time axis and markers.
How to use
- Upload one audio file and read the waveform.
- Play, zoom, drag the selection and edit time markers.
- Choose image settings, generate a PNG, then download or delete it.
Frequently asked questions
Does this trim or modify my audio?
No. The selection controls loop playback and can limit the exported waveform image. The original audio is unchanged.
Which formats are supported?
Upload one MP3, WAV, M4A, OGG, FLAC or AAC. Size, duration and processing limits appear on the page. Channels appear in source order; playback with more than two channels is mixed to stereo.
Why are zoomed waveforms still grouped?
The waveform is an envelope for navigation, so long recordings do not require decoding the entire file in your browser. This is not a sample-level audio editor. Selection export recalculates the exact requested range.
What if there are too many markers?
Every marker in range retains its position line. Crowded or long labels may be omitted or shortened, with a notice in the result. Increase image width or export a smaller range.
How long are files kept?
Audio, waveform data, preview copies and generated images are temporary and deleted within 24 hours, or immediately on request.
Discussion & comments
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