Ultra Fractal 4 is distributed with only a small number of standard formulas. Additional formulas are available from the online formula database. It contains thousands of fractal formulas, coloring algorithms, and transformations written by Ultra Fractal users.

To download and install the formulas from the online database, simply click Update Public Formulas on the Options menu in Ultra Fractal and follow the instructions.

If you are a formula author and you would like to make your own formulas publicly available, go to formulas.ultrafractal.com to sign up as an author and upload your formulas.

On this web site, you can also browse through the formulas and download the complete collection as a ZIP archive.