Bluesky Banner Size (2026)
Upload a 1500×500 px banner (3:1). Keep key content centered — your avatar overlaps the bottom-left and edges crop on mobile.
| Placement | Pixels | Ratio | |
|---|---|---|---|
| Banner (recommended) — 3:1 Sharp on desktop and mobile profile headers |
1500×500 | 3:1 | |
| Avatar overlap zone Your circular avatar sits over the lower-left corner |
~bottom-left | — | |
| Max file size JPG or PNG; compress if larger |
~1 MB | — |
Upload 1500×500 for a crisp 3:1 header
Bluesky profile banners display as a wide 3:1 strip across the top of your profile. Uploading 1500×500 px gives the sharpest result on both desktop and mobile without Bluesky having to upscale.
Mind the avatar and the crop
Your round avatar overlaps the bottom-left of the banner, and the left/right edges can be trimmed on narrow phone screens. Keep logos and text in the center with padding so nothing important is hidden.
Format and file size
Use JPG or PNG and keep the file around 1 MB or smaller so it uploads cleanly.
FAQ
What is the Bluesky banner size in 2026?
1500×500 px, a 3:1 aspect ratio. This is the recommended header size for both desktop and mobile.
Where does the Bluesky avatar sit on the banner?
The circular avatar overlaps the bottom-left corner of the banner, so keep that area clear of important content.
What file format should a Bluesky banner be?
JPG or PNG, around 1 MB or smaller for a clean upload.