Bluesky · Image sizes
Match Bluesky post, banner, or avatar
Timeline photos, the profile banner, and the circular avatar are three artboards. Crop each before you publish.
Sizes on Bluesky
Open a guide for exact pixels, safe zones, and an in-browser crop for that surface.
A new network with familiar crop traps
Widescreen posts look sharp around 1200×675. Edge-hugging type can clip in multi-image layouts.
Banners are very wide (about 3:1). Keep headlines away from the far edges and the avatar overlap.
Avatars are circles in the feed—center the face and export a large square.
Quick picks
Match the task to the guide so you do not export the wrong ratio.
- Attaching a photo to a post → Post image.
- Profile header strip → Banner.
- Feed circle only → Profile picture.
Frequently asked questions
What size are Bluesky posts?
1200×675 (~16:9) is a strong practical default for timeline photos.
What size is a Bluesky banner?
About 3000×1000 (3:1) is a common upload target—keep type off the far edges.
What size is a Bluesky avatar?
A large square (try 1000×1000) shown as a circle.
Can I reuse an X banner?
Reuse the photo, then re-crop—safe zones and overlap still differ.