X profile photo size
400 × 400 px · 1:1 · avatar
400 × 400
The details
X's recommended profile photo is a 400×400 JPG, GIF or PNG; animated GIFs are not supported. It renders as a circle everywhere, including tiny timeline sizes, so simple and centered wins.
Safe area: Displayed as a circle — keep the subject centered and away from the corners.
Source: help.x.com · checked 2026-07-04