This article explains how to add a GIF to a tweet on X. X supports a GIF search engine (Giphy) and a GIF keyboard platform (Riffsy) for built-in GIF sharing.
How to Post a GIF on Twitter – Create and Post a Tweet with a GIF Image
You can add a GIF to a tweet or post one by itself.
Click in the tweet compose box or select the tweet compose button (marked with a pen/paper icon) to activate the buttons.
Select the GIF icon between the photo/video camera icon and the poll icon.
