Download Unicon

Source Code
The current version of Unicon is 13.3. Folks who want current code and bugfixes obtain their sources from the Git repository.
These older versions are kept around for historical and occasional comparison purposes. Unicon 13.0 beta source distribution for UNIX and MS Windows, .zip compressed archive format, approximately 7.4MB (updated 4/4/2017). These .zip files are updated only occasionally. The uni.zip sources generally build on: Solaris, Linux, Windows, Mac OS X, OpenBSD and other platforms as well. We welcome ports and configuration updates! Past (archival) versions:
Windows
Unicon 13.3 64-bit binary distribution for Microsoft Windows platforms, BYOPL2e TEST EDITION, approximately 15MB.
  • Although jeffery will support this version, it is very much a test version and may have bugs. For example its 3D graphics have a known bug.
Unicon 13.2 binary distributions for Microsoft Windows platforms, approximately 18MB.
Linux Ubuntu(++?) PPA
A Linux Unicon package is or was available through an Ubuntu PPA. You might be able to get Unicon installed and keep it up to date by: 
     sudo add-apt-repository ppa:jafaral/unicon
     sudo apt update
     sudo apt install unicon
MacOS Sierra
Unicon 13.0 non-graphical and X11-graphics binaries for Intel MacOS machines, approximately 12 and 16MB. To be honest, some of us stopped caring about Apple a long time ago when they went full-on closed and proprietary. You are weclome to build your own from sources.
Unicon Book
The Unicon book, 2nd edition Internet draft. Adobe Acrobat .pdf format, from LaTeX open source that is included in the Unicon SVN repository checkout. (code listings and errata).