Waveform Generator
Visualize an audio file’s waveform.
Choose a file or paste
Files never leave your device — this runs entirely in your browser.
Read the waveform as an overview
200 peak bars from the first channel
After you choose an audio file, the tool decodes it and shows peak amplitudes in 200 time buckets from the first channel. For stereo audio, this is not a combined view of both channels.
A visual overview, not an audio editor
The input limit is 100 MiB and decoding depends on your browser. There is no waveform image download, frequency spectrum or editing timeline. Silent buckets still have a small visible bar, so a visible bar alone does not mean audible sound.
Visualization happens locally
The selected audio is decoded in the browser to draw the bars. It is not uploaded to create the waveform, and this page does not produce a converted audio file.
A stereo file with different channels
Left channel silent; right channel contains a toneThe overview follows the silent first (left) channel. It can show only minimum-height bars even while the right channel contains sound.
Related tools
How it works
- 1
Choose an audio file
Up to 100 MB.
- 2
Waveform drawn instantly
Peak amplitude per time bucket, visualized as bars.
- 3
Use it to see the shape
Spot silence, loud sections or clipping at a glance.
FAQ
- How is the waveform computed?
- The first decoded channel is split into 200 time buckets and each bucket’s peak absolute amplitude is drawn. Other channels are not combined into this view.
- Can I export the waveform image?
- The waveform is rendered for viewing on this page; there is no separate image export for it yet.
- Does this tool upload my audio anywhere?
- No — the waveform is generated entirely in your browser with the Web Audio API.