A free browser tool turns audio into waveform images and videos

Orec’s waveform generator is a free web tool that turns an audio file into a waveform image or video. It lets people adjust fills, visual styles, presets, and colors, including a circle style.

If the audio file contains details such as the artist, title, or image, the tool can read them automatically and place that information in the final waveform. Video creation is also included, built with FFmpeg running in the browser.

The hardest part was fixing problems, because the preview on screen can differ from the final output the computer produces. The tool on the user’s device, so files are not sent away from the device.

Key points

  • The tool creates waveform images and videos from audio files.
  • Users can change presets, colors, fills, and visual styles.
  • It can read artist, title, and data from an audio file when that data exists.
  • Video output uses FFmpeg in the browser.
  • Files stay on the user’s device instead of being uploaded elsewhere.
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