There are 2 repositories under ffxiv-modding topic.
VFX, animation, sound, and physics editing plugin for FFXIV
FFXIV Modding Tool is the Cross-platform Commandline interface alternative for TexTools
Automatically synchronizes the level of your character whenever you join a FATE in Final Fantasy XIV.
Blue version of the Final Fantasy XIV default UI
A fork of Anna's roleplayer's toolbox