seeaud.io Create your visualizer

Free online audio spectrum visualizer

Turn your audio into an animated spectrum video in minutes.

Choose an energetic Line or classic Bars visualizer. Customize colors, backgrounds, and aspect ratio, then export a polished MP4 directly in your browser—no uploads or installs.

Create your visualizer

Free to use · Your audio stays on your device

Energetic Line audio spectrum visualizer in a 16:9 video.
Classic Bars audio spectrum visualizer in a 16:9 video.

Made for every feed

Landscape or vertical. Your choice.

Create widescreen videos for YouTube or vertical clips for Reels, TikTok, and Shorts using the same visualizer controls.

Energetic Line audio spectrum visualizer in a 9:16 video.
Classic Bars audio spectrum visualizer in a 9:16 video.

Simple workflow

From audio to video in three steps.

  1. 01

    Add your audio

    Drop in music, a podcast, or a voice recording.

  2. 02

    Shape the spectrum

    Choose Line or Bars and tune the visual.

  3. 03

    Export your video

    Render a polished MP4 directly on your device.

FAQ

Questions, answered.

An audio spectrum visualizer turns the frequencies in an audio track into motion. Low, mid, and high frequencies drive animated shapes such as bars or a line.
Open seeaud.io, add an audio file, choose Line or Bars, customize the colors, background, and format, then export an MP4.
No. Your audio stays on your device and is processed on your device. It never leaves it and is not sent anywhere.
Choose an energetic glowing Line or classic Bars. Both styles can be customized with colors, backgrounds, scale, and layout controls.
Yes. Use 16:9 for horizontal video or 9:16 for vertical video.
No. seeaud.io runs in a supported browser, so you can create and export without installing a desktop application.
Create your visualizer