Formats
JPG, PNG
Bluesky avatar size
As of July 2, 2026, the Bluesky avatar is 1000 by 1000 pixels (1:1). Below is the full spec, then a resizer already set to that size so you can export a perfectly fitted image.
BlueskyAvatarLast verified July 2, 2026
Recommended size1000x1000 px
Aspect ratio1:1
Minimum that still renders sharp400 x 400
Resize to 1000x1000 now
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About the Bluesky avatar size
Bluesky does not publish a single fixed pixel spec for the avatar; instead the app resizes whatever square you upload, capped at roughly 1 MB. A 1000 by 1000 square is a safe, widely used target that stays sharp both when the avatar shows tiny in a reply thread and when someone taps it to view full size, while 400 by 400 is a practical floor below which it starts to look soft. Bluesky masks the upload to a circle across the whole app, so keep a face or logo centred and away from the corners.
Quick tips
- 01Upload a square around 1000 by 1000; 400 by 400 is a practical floor before it looks soft.
- 02Bluesky caps the avatar upload at roughly 1 MB, not a fixed pixel size.
- 03Masked to a circle everywhere, so keep the subject centred and away from the corners.
Frequently asked questions
What aspect ratio is a Bluesky avatar?
The Bluesky avatar uses a 1:1 aspect ratio at 1000 by 1000 pixels.
Related sizes
See all Bluesky sizes, the full cheat sheet, or grab this spec from the JSON API.