Audio Visualizer

What is an audio visualizer?

An audio visualizer turns sound into moving graphics. This one splits your song into 64 frequency bands, from the kick drum on the left to cymbals on the right, and animates them frame by frame in time with the music.

Musicians use visualizer videos to post tracks on YouTube, Instagram and TikTok without filming anything. The video is drawn and encoded on your device with WebCodecs, so your song is never uploaded and the MP4 has no watermark.

A visualizer video is the easiest way to give a song a visual identity. Instead of a static cover image, listeners see the bass hit, the melody rise and the beat move in time. This audio visualizer gives you three looks, three formats and four colour themes, and every visualizer frame is drawn from your song’s own audio data, so no two videos look the same.

Visualizer styles, formats and themes

The preview on the page uses the same drawing code as the export, so what you see while the song plays is what ends up in the MP4.

Make a music visualizer for YouTube, TikTok or Instagram

• YouTube: choose 16:9 at 1080p. Bars or Wave with your title and artist make a clean lyric-free upload.
• TikTok, Reels and Shorts: choose 9:16. Circle with your artwork in the middle reads well on a phone.
• Instagram feed: choose 1:1 so the video is not cropped in the grid.
• Spotify Canvas-style teasers: render a short clip of your chorus in 9:16 and trim it in your video app.

Rendering happens on your device and usually runs faster than real time; a 3-minute song at 1080p takes under a minute on a recent laptop. Keep the tab open until the download starts.

Tips for a better-looking audio visualizer video

• Use square artwork of at least 1000×1000 px so the cover stays sharp in 1080p.
• Pick a theme that matches your cover — Sunset for warm artwork, Aqua for cool tones, Mono for minimal designs.
• Fill in the tags first. Title, artist and artwork are read from your MP3 automatically; fix them with the MP3 Tag Editor before you start.
• Bass-heavy songs suit Bars and Circle, while vocals and acoustic tracks look good as a Wave.

Which browsers and devices can render the video?

Videos are encoded with WebCodecs, a feature built into modern browsers. Recent desktop versions of Chrome, Edge and Safari save H.264 video with AAC audio — the most compatible MP4 for YouTube, TikTok, Instagram and Apple devices. Firefox saves H.264 video with Opus audio, which plays in browsers but may not open in some Apple apps, so prefer Chrome, Edge or Safari if you plan to edit the video on an iPhone or Mac.

Phones can preview every style; whether a phone can also render depends on its browser’s WebCodecs support, and the page tells you before you start. The whole video is built in memory, so songs are limited to their first 6 minutes and very long files are better rendered on a computer. Your song and artwork are never uploaded, and the finished MP4 has no watermark.

Why use a free audio visualizer instead of video software?

Making a music visualizer in After Effects or a template site usually means a learning curve, a subscription or a watermark. This audio visualizer is built for the simple case — you have a song and you want a good-looking video for it today:

• No editing skills needed. Pick a visualizer style, a format and a theme; the animation follows the music automatically.
• Accurate motion. The visualizer analyses 64 frequency bands for every frame, so kicks, bass lines and vocals each move their own part of the graphic.
• Private and free. Your music is never uploaded, there are no credits and every MP4 is watermark-free.

For more advanced edits, render the visualizer here and add lyrics or clips in your usual video app afterwards.