Explore the mathematical beauty of fractals and create stunning fractal art with Scale.

Scale is fast and a pleasure to use. It was designed from the ground up to be intuitive and user-friendly.

* Click and drag or use arrow keys to pan.
* Double-click to zoom in, right-click to zoom out.
* User-configurable gradients with several built-in color palettes.
* Configurable antialiasing.
* Configurable fractal detail.
* Render to disk at high resolution to easily create wallpapers or poster prints.
* Randomize to quickly explore different fractals.
* Mandelbrot and Julia sets supported.
* Uses tile caching to avoid recomputing fractals.
* Uses all CPU cores for rendering.
* Supports full-screen mode.

What’s New

Version 1.2

Added fractal library.

Ratings and Reviews

3.5 out of 5
16 Ratings

16 Ratings

kitty9600 ,

won't let me save

I try to save but then it hangs or something and I can't save my art. Please tell me how to fix this problem. Thanks!

sky_blue02 ,

Thank you! :)

Scale is very simple and straightforward. I’ve created a bunch of beautiful fractal images to use as wallpaper. I do wish that you could save the current settings so you could open a fractal later and change colors or pick a different zoom level. That would be a great setting I’d love to see. I’d also love to be able to rotate fractals. That would be great, too. Because sometimes I feel like a design would look better from a slightly rotated angle. But, as-is, I’m very happy with it. Thank you for providing it for free. The math-lover in me is very grateful! :)

For those having issues (as well as for the developers), I’m using High Sierra on a 13-inch, early 2015 MacBook Air with 8GB RAM and a 2.2GHz Intel core i7 and I don’t think I’ve had Scale crash once for me. I’ve also never had any performance issues.

PDBreske ,

Fun to play with, but crashes. A lot.

Crashes on every third attempt to save a design to disk. This is infuriating when you’ve spent the last few minutes tweaking the design and colors, especially since color presets can’t be saved and the app reopens only with the default design displayed.

Updating this review to remove a star. When I said it crashes on every third attaempt to save an image, I wasn’t kidding. EVERY THIRD TIME. So now I just goof around for a minute or two after saving the first two, then I either quit or wait for the crash.


Michael Fogleman
2.4 MB

OS X 10.7 or later, 64-bit processor



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.