spec · image
Threads Post Size
Threads feed images work well at 1080×1350 pixels (4:5 portrait). Square 1080×1080 is also supported — pick one aspect ratio per post for consistent grid previews.
Updated 2026-05-26
Use Image to Base64
Official dimensions
| Asset | Size | Max file | Formats |
|---|---|---|---|
| feed_post | 1080×1350 | 8192 KB | jpg, png |
Portrait 4:5 feed image. Square 1080×1080 also supported.
Preset: 1080×1350
FAQ
- What size are Threads post images?
- 1080×1350 px (4:5 portrait) is common; 1080×1080 square also works.
- Threads vs Instagram post size?
- Instagram square is 1080×1080; Threads portrait favors 1080×1350.
- Can I upload landscape to Threads?
- Portrait and square perform best in feed; extreme landscape may letterbox.
- Best format for Threads?
- JPG for photos; PNG for graphics with transparency.