How it works
- Drop your cover art. JPG, PNG or WEBP up to 25 MB — it is embedded into the scene locally, nothing is uploaded.
- 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.
- Export the MP4. 5 to 30 seconds, 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 — or upload your own video (up to 60 s, 50 MB) as the background.
- Built for vertical platforms. MP4 (H.264 + AAC), 9:16, 5 to 30 seconds, with adjustable fade in and fade out on both video and audio.
- 100% in your browser. Preview and final render run locally with ffmpeg.wasm — your artwork and audio never leave your machine.
FAQ
Is the audio visualizer free?
Yes. Anonymous users get 5 free uses per day across AudioKit's free tools — no account needed. 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 and the final MP4 encoding all run in your browser with ffmpeg.wasm — 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 at 464×832, from 5 to 30 seconds, 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 50 MB and 60 seconds, 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.