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Bluesky
Updated for 2026

Bluesky Image Sizes & Dimensions in 2026

Complete guide to Bluesky post image, banner, and profile photo dimensions. Optimal sizes for posts, videos, and profile customization.

Recommended2000 × 1125px
Aspect Ratio16:9
Max File Size1MB

All Bluesky Image & Video Sizes

All Bluesky Image & Video Sizes
FormatDimensionsAspect RatioMax File SizeFile Types
Profile
Profile Photo
1000 × 1000px1:11MBJPG, PNG
Feed & Posts
Post (Landscape)Recommended
2000 × 1125px16:91MBJPG, PNG, WebP
Post (Square)
1500 × 1500px1:11MBJPG, PNG, WebP
Post (Portrait)
1125 × 2000px9:161MBJPG, PNG, WebP
Covers & Banners
Banner
3000 × 1000px3:11MBJPG, PNG
Video
Video
1920 × 1080px16:950MBMP4

Bluesky Size Comparison

1:1
Profile Photo1000×1000
3:1
Banner3000×1000
16:9
Post (Landscape)2000×1125
1:1
Post (Square)1500×1500
9:16
Post (Portrait)1125×2000
16:9
Video1920×1080

Bluesky Image Size Tips

Strict 1MB image limit

Bluesky has a strict 1MB file size limit for images. Compress your images before uploading or they will be rejected.

Landscape images display best

Bluesky's feed layout favors landscape images at 2000 × 1125px (16:9). These display prominently without cropping in the timeline.

Banner is ultra-wide

Bluesky profile banners are 3000 × 1000px (3:1). Use this wide format for brand messaging, but keep text centered for mobile compatibility.

Compress aggressively

Due to the 1MB limit, use tools to compress JPG images to 80-85% quality. Most images look identical at this compression level but fit under the limit.

Video is still limited

Bluesky video support has a 50MB limit and only supports MP4 format. Keep videos short and optimized for the best upload experience.

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