Audio / Visualise
Audio Waveform Image Generator (PNG and SVG)
Turn an audio file into a waveform image for podcast covers, social posts, or prints: choose mirrored bars, bars, or a filled wave, set the size and colours or a transparent background, and download a PNG or a scalable SVG.
Audio Waveform Image Generator (PNG and SVG): The track is split into as many equal slices as there are bars, and each bar shows the loudest sample in its slice, with all channels mixed down. Heights are scaled so the loudest moment fills the image. The SVG contains only rectangles or one shape, so it stays sharp at any size. Runs 100% locally in your browser with zero server file uploads.
- Category
- Video tools
- Runs
- In your browser
- Cost
- Free · no sign-up
- Availability
- Ready to use
Runs entirely in your browser
MP3, WAV, M4A, OGG, or FLAC · nothing uploaded
The track is split into equal slices, and each bar shows the loudest point in its slice, scaled so the loudest moment fills the height. Mirrored bars suit podcast covers and social posts; the SVG stays sharp at any size and can be recoloured later.
Waveform or spectrum
A waveform shows loudness over time; a spectrum shows which frequencies are present. For a live picture of frequencies from the microphone, use the spectrum analyzer.
Short clips
To show only a chorus or a phrase, cut it out first with the audio trimmer.
How to use it
- Choose an audio file.
- Pick the style, number of bars, size, and colours.
- Download a PNG or SVG, or copy the SVG code.
Privacy & limitations
The audio is processed in your browser and never uploaded.
Related tools
Frequently asked questions
Which style suits a podcast cover?
Mirrored bars read clearly at small sizes; around 60 to 120 bars on a square cover keeps them visible on a phone.
Can I make a sound wave print of a voice message?
Yes: export a large PNG or the SVG, which can be scaled for print without losing sharpness.
Why does a quiet track look flat?
It does not: heights are scaled to the track's own loudest point, so even a quiet recording fills the image.
Free tool · runs in your browser · no account required