Version 1.0.2

Definitely one for the fern enthusiasts, Fronds is a screen saver that draws never–ending fractal ferns. New ferns gradually appear while the old ones slowly fade out.

Fronds is a homage to my old Windows screen saver Ephemera — I still remember its ferns mode fondly more than 20 years after I first released it.

Fronds uses IFS fractals to draw the ferns, which continues a long association for this type of fractal: the Barnsley fern is one of the classic examples of an IFS.


  • macOS 10.13 or later.


Release Notes

  • Version 1.0.2 — 25th September 2021
    • The Fronds screen saver is now signed and notarized by Apple, meaning it will run without trouble on recent versions of macOS.
    • This release is the same as 1.0.1 with the addition of signing.
  • Version 1.0.1 — 28th June 2020
    • Fixed a memory leak.
    • Improved the Metal kernel that draws the ferns, so it will run more efficiently now.
  • Version 1.0.0 — 23rd June 2020
    • Initial public release.