Bluesky avatar size
1000 × 1000 px · 1:1 · avatar
1000 × 1000
The details
Bluesky serves avatars at the resolution you upload, within a 1MB file cap — so a 1000×1000 square stays sharp both as a tiny reply-thread circle and when opened full size. PNG or JPG.
Safe area: Displayed as a circle throughout the app — center the subject and pad the corners.
Source: blog.hootsuite.com · checked 2026-07-04