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How it works

  1. Drop your cover art. JPG, PNG or WEBP up to 64 MB — it is embedded into the scene locally, nothing is uploaded.
  2. Pick a scene and the audio. Choose an animated scene (urban, nature, abstract…) or your own short video, add an audio file (MP3, WAV, M4A, FLAC, OGG up to 70 MB) and set the fades.
  3. Export the MP4. 5 to 30 seconds (or one full loop for a silent Spotify Canvas), vertical 9:16 — rendered in your browser and sized for Canvas, Reels, TikTok and Stories.

Features

  • Your artwork inside the scene. The cover is warped in perspective into the scene — on a screen, a wall, a poster — instead of being pasted flat on top.
  • A library of looping scenes. Urban, nature, abstract, artist, music, nightlife and black & white scenes that loop seamlessly — the last frame flows into the first, so there is no visible jump — or upload your own video (up to 60 s and 600 MB — optimized in your browser above 80 MB) as the background.
  • Optional pulse on the beat. With audio, the picture can zoom in and brighten slightly on every beat. The tempo and the beats are found by analyzing the whole track, the tempo is shown before you export, and each pulse lands on the video frame closest to its beat. Off by default; best with a steady tempo.
  • Built for vertical platforms. MP4 (H.264 + AAC), 9:16 up to 1080×1920, 5 to 30 seconds, with adjustable fade in and fade out on both video and audio. For a silent Spotify Canvas: exactly one loop, with no fades, so it repeats without a black flash.
  • 100% in your browser. Preview and final render run locally, with your browser's built-in video encoder (ffmpeg.wasm on older browsers) — your artwork and audio never leave your machine.

FAQ

Is the audio visualizer free?

Yes. Without an account you get 2 free uses per day across AudioKit's free tools; with a free account, 5 per day. A use is only counted when you export the MP4; picking scenes, uploading artwork and previewing is free. AudioKit Premium removes the daily limit.

Are my artwork and audio uploaded to a server?

No. The scene compositing, the preview, the beat analysis and the final MP4 encoding all run in your browser (with its built-in video encoder, or ffmpeg.wasm on older browsers) — your files never leave your machine. The only network call is a tiny anonymous counter that tracks your daily free quota.

Which export formats does the visualizer support?

One format, tuned for vertical feeds: MP4 with H.264 video and AAC audio (192 kbps), 9:16 in 1080×1920 (Full HD) or 720×1280 — 464×832 on older browsers without a built-in video encoder — from 5 to 30 seconds (or one full loop of the scene, about 4 to 5 seconds, for a silent Spotify Canvas), with faststart enabled so it plays instantly. That combination is accepted by the Spotify Canvas uploader, Instagram, TikTok and video editors alike.

Can I use my own video as the background?

Yes. Upload an MP4, MOV or WEBM up to 600 MB and 60 seconds — files over 80 MB are optimized automatically in your browser — then drag it horizontally to choose which part fills the 9:16 frame. Your video stays local like everything else.

What is the difference with the Cover video tool?

The visualizer animates your artwork inside a moving scene, for short loops (Canvas, Reels covers, teasers). The Cover video tool does the opposite job: a static cover over the full length of your track, in four formats (9:16, 1:1, 4:5, 16:9) up to 10 minutes — that is the one for a full song on YouTube.