PostSize Crop tool

Bluesky · Image sizes

Match Bluesky post, multi-image, banner, avatar, or link card

Single timeline photos, multi-image sets, the profile banner, the circular avatar, and URL embeds are different artboards. Crop each before you publish.

Bluesky image sizes: Post image, Multi-image, Link card and more
Real Bluesky publish ratios side by side. Pick the surface, then crop to that artboard.

Sizes on Bluesky

Open a guide for exact pixels, safe zones, and an in-browser crop for that surface.

Post image

1200 × 675

~16:9 timeline photos with safe margins.

Multi-image

1080 × 1440

Practical 3:4 frames for multi-photo posts.

Link card

1200 × 627

~1.91:1 URL embed—set og:image on the destination.

Banner

3000 × 1000

Wide profile header—quiet avatar corner.

Profile picture

1000 × 1000

Circular avatar for the feed.

A new network with familiar crop traps

Widescreen single posts look clear around 1200×675. Multi-image posts are often cropped toward a taller ~3:4 habit—export that set separately from a single landscape still.

Banners are very wide (about 3:1). Keep headlines away from the far edges and the avatar overlap. Link embeds commonly use a ~1200×627 share card—set that on the destination page, not as a banner substitute.

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 one photo to a post → Post image.
  • Two or more photos in one post → Multi-image at ~3:4.
  • Sharing a URL with a rich embed → Link card at 1200×627 on the destination page.
  • Profile header strip → Banner.
  • Feed circle only → Profile picture.
  • Coming from X → Re-crop; safe zones and overlap still differ.

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 link card?

A practical embed card is 1200×627 (~1.91:1). Set it via Open Graph / social preview on the destination URL.

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.