Bluesky Image & Video Sizes
Every Bluesky image and video size for 2026: exact dimensions, aspect ratios, and file specs for posts, stories, profiles, ads, and thumbnails — in one reference.
All current Blueskyimage and video dimensions for 2026. Dimensions are in pixels (width × height). Aspect ratios marked with ~ are approximate.
Bluesky Posts
| Surface | Dimensions (px) | Ratio | Notes |
|---|---|---|---|
| Post Image (Landscape) | 1600 × 900 | 16:9 | Images display with a 2:1 crop in the feed timeline; center your key content. |
| Post Image (Square) | 1000 × 1000 | 1:1 | Displays fully without cropping. Max file size 1 MB per image. |
| Post Image (Portrait) | 1080 × 1350 | 4:5 | Portrait images may be cropped in the timeline; tap to view in full. |
Bluesky Videos
| Surface | Dimensions (px) | Ratio | Notes |
|---|---|---|---|
| Video (Landscape) | 1920 × 1080 | 16:9 | Added in late 2024. Max 60 seconds; max 50 MB per video. |
| Video (Portrait) | 1080 × 1920 | 9:16 | Full-screen vertical video. Same 60-second and 50 MB limits apply. |
Bluesky Profile
| Surface | Dimensions (px) | Ratio | Notes |
|---|---|---|---|
| Avatar / Profile Photo | 1000 × 1000 | 1:1 | Displayed as a circle. Max file size 1 MB; PNG or JPEG. |
Bluesky Cover & Banner
| Surface | Dimensions (px) | Ratio | Notes |
|---|---|---|---|
| Profile Banner | 3000 × 1000 | 3:1 | Max file size 1 MB. Displayed behind your avatar on your profile page. |
How it works
- 1
Find the right surface
Browse the grouped tables — Posts, Stories & Reels, Profile, Cover & Banner, or Ads — and locate the surface that matches what you're creating.
- 2
Design at native resolution
Create your asset at the exact pixel dimensions listed. Scale down only after designing at full resolution to keep edges crisp.
- 3
Respect the aspect ratio
Most platforms crop to the listed ratio if you upload a mismatched size. Check the Notes column for safe-zone boundaries before placing text or logos.
Frequently asked questions
What is the best Bluesky image size?
The recommended Bluesky image size is 1600 × 900 (16:9). Images display with a 2:1 crop in the feed timeline; center your key content.
What size is the Bluesky avatar / profile photo?
The Bluesky avatar / profile photo should be 1000 × 1000 (1:1). Displayed as a circle. Max file size 1 MB; PNG or JPEG.
What aspect ratio does Bluesky use?
Bluesky supports multiple aspect ratios depending on the content type. The primary format is 16:9 (1600 × 900). Always check the spec table above for the exact ratio of each surface.
What file format should I use for Bluesky images?
JPEG is best for photographs and complex imagery. PNG is better for graphics, text, or anything with transparency. Keep file sizes as small as possible without visible quality loss to improve load speed and avoid compression artifacts on upload.
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