Is Vortexia's fractal visualizer free?

Yes. The free tier renders audio-reactive fractals at 720p/30fps with a small watermark on a single platform. Paid tiers from $49.99/year unlock 1080p, 4K, no watermark, and custom shader uploads.

Which fractals can it render?

Five families — the Mandelbrot set, Julia sets, the Burning Ship, the Tricorn (Mandelbar), and a cubic Multibrot. Each runs on the GPU and reacts to audio in real time.

Do I need to install anything?

No. Vortexia runs in a normal browser tab and adds to OBS or Streamlabs as a Browser Source URL. There is nothing to download and no plugin to manage.

How does the audio reactivity work?

The browser's Web Audio API runs a real-time FFT on your audio and extracts bass, mid, and treble. Those bands drive the fractal's pulse, zoom, color shift, and detail, so the visuals move with the music.

Does it work on Twitch, Kick, and TikTok Live?

Yes. Any platform that accepts an OBS or Streamlabs Browser Source works, including Twitch, Kick, YouTube Live, and TikTok Live.

AUDIO-REACTIVE VISUAL · UPDATED 2026-06-04

Audio Reactive Fractal Visualizer

Name: Vortexia
Rating: 4.8 (127 reviews)
Author: Yusuf @ Vortexia

Real-time fractals that pulse to bass, mid, and treble

Vortexia is a free, audio-reactive fractal visualizer that runs in your browser. It renders real-time Mandelbrot, Julia, and Burning Ship fractals that pulse to your music's bass, mid, and treble — added to OBS as a single browser source. No install.

Open the dashboard · Watch it live · All presets · Pricing

What is Audio Reactive Fractal Visualizer?

Vortexia is a free, audio-reactive fractal visualizer that runs entirely in a browser tab — no download, no install, no plugin. It uses your GPU (WebGL2) to render real fractals in real time, including the Mandelbrot set, Julia sets, the Burning Ship, the Tricorn, and a cubic Multibrot. The browser's Web Audio API analyzes whatever audio your stream is playing and splits it into bass, mid, and treble bands; the fractal then pulses, zooms, and shifts color in time with the music. To use it on stream, you pick a look at vortexia.live/demo and paste a single Browser Source URL into OBS, Streamlabs, Kick, Twitch, YouTube Live, or TikTok Live. The free tier renders at 720p with a watermark; paid tiers unlock 1080p, 4K, and custom shaders. Every frame is generated live, so the visuals never loop.

How to use Audio Reactive Fractal Visualizer

Open the visualizer. Go to vortexia.live/demo, choose a fractal engine, and enable your stream or microphone audio to watch it react.
Add it to OBS. In OBS or Streamlabs, add a Browser Source and paste your Vortexia viewer URL. Set it to 1920x1080 to match your canvas.
Layer and go live. Place the source behind your webcam and game capture so it becomes a living background, then start streaming.

Specs & output

Engine	Mandelbrot
Render Mode	genesis
Iteration Depth	110
Default Zoom	0.80
Colour Shift	210°
Output (Free)	720p / 30fps + watermark
Output (Plus)	1080p / 60fps, no watermark
Output (Pro)	4K / 60fps, custom shader uploads
Audio Source	Browser tab audio (FFT, real-time)
Last Updated	2026-06-04

Frequently asked questions

Is Vortexia's fractal visualizer free?: Yes. The free tier renders audio-reactive fractals at 720p/30fps with a small watermark on a single platform. Paid tiers from $49.99/year unlock 1080p, 4K, no watermark, and custom shader uploads.
Which fractals can it render?: Five families — the Mandelbrot set, Julia sets, the Burning Ship, the Tricorn (Mandelbar), and a cubic Multibrot. Each runs on the GPU and reacts to audio in real time.
Do I need to install anything?: No. Vortexia runs in a normal browser tab and adds to OBS or Streamlabs as a Browser Source URL. There is nothing to download and no plugin to manage.
How does the audio reactivity work?: The browser's Web Audio API runs a real-time FFT on your audio and extracts bass, mid, and treble. Those bands drive the fractal's pulse, zoom, color shift, and detail, so the visuals move with the music.
Does it work on Twitch, Kick, and TikTok Live?: Yes. Any platform that accepts an OBS or Streamlabs Browser Source works, including Twitch, Kick, YouTube Live, and TikTok Live.

About the author

Yusuf @ Vortexia — Vortexia Engine Creator.

Yusuf builds Vortexia — a browser-based, GPU-accelerated audio-reactive visual engine used by streamers and DJs on Twitch, Kick, YouTube Live and TikTok Live.