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Bluesky image and video sizes

The recommended dimensions, aspect ratios and limits for every Bluesky format Planifly publishes.

Bluesky Post

Publication Bluesky standard

Images

Recommended size
1200 × 627 px
Aspect ratios
Landscape (1.91:1), Square (1:1), Portrait (1:2)
Max. file size
1 MB
Formats
IMAGE/JPEG, IMAGE/PNG, IMAGE/GIF, IMAGE/WEBP, IMAGE/SVG+XML

Videos

Recommended size
1280 × 720 px
Aspect ratios
Landscape (16:9), Square (1:1), Portrait (9:16)
Duration
1 s – 60 s
Max. file size
50 MB
Formats
VIDEO/MP4, VIDEO/QUICKTIME

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Bluesky Image Size & Video Specs (2026) — Every Format