Fractal Generator
Explore the Mandelbrot and Julia sets — click and drag to pan, scroll to zoom toward the cursor.
Mode
Higher values reveal finer detail in deep zooms but take longer to render.
Julia seed
Switch to Julia mode to dial in the seed constant. In Mandelbrot mode the seed is the pixel itself.
Colour palette
Interesting locations
About this tool
This explorer renders the Mandelbrot set and its Julia counterparts pixel by pixel in your browser, using a continuous (fractional) escape-time formula so the colours blend smoothly instead of forming hard bands. Because deep zooms need millions of iterations, the renderer paints a low-resolution preview first and then refines it, keeping the page responsive while you drag and scroll. Everything — including the PNG export — happens locally; no image or coordinate ever leaves your device.
- 100% free — no account needed
- Runs in your browser
- Nothing is uploaded
Frequently asked questions
Is Fractal Generator really free?
Yes. Fractal Generator is completely free on PureBrowser — every feature, with no account, no trial, and no credit card.
Does Fractal Generator upload my data?
No. Fractal Generator runs entirely inside your browser, so anything you type, paste, or open stays on your own device.
Do I need to sign up or install anything?
Neither. There is no account and nothing to download — open the page and Fractal Generator is ready to use on desktop or mobile.
Does Fractal Generator work offline?
Once the page has loaded, yes. All of the processing happens locally in your browser, so it keeps working without a connection.
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