The gml4gtk graph viewer download is on sourceforge
at https://sourceforge.net/projects/gml4gtk/files/

This has a gtk-4 gui on Linux and gtk-3 on windows

The project page is at https://sourceforge.net/projects/gml4gtk/

The pre-compiled 64bits windows binaries and needed GTK+ dll's are in a zip file at
https://sourceforge.net/projects/gml4gtk/files/gml4gtk-7.6-windows-64bits.zip/download


On windows the zip file can be unzipped at any location and then run in the directory the gml4gtk.exe program.

For Linux and mac osx there is the GTK+ source to compile at
 https://sourceforge.net/projects/gml4gtk/files/gml4gtk-7.6.tar.gz/download

It can be compiled for GTK-2 or GTK-3 or GTK_4 using configure option --with-gtk=2 or 3 or 4

The 7.6 version has partial support for html labels with <table> items
and the git repo with the development version is on gitlab at

https://gitlab.com/mooigraph/gml4gtk

It can also run using the browser for Linux, windos, and os-x using onworks see this link https://www.onworks.net/software/linux/app-gml4gtk

For compilation of gtk+ programs on widows here is a guide https://stdin.top/posts/gtk4-on-windows/

On sourceforge is the support and tickets and wiki tab for more help with gml4gtk

The ggl tool can re-write gml files, used for chemical topics at https://github.com/BackofenLab/GGL
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