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1080×1080
shown at 20%
Feed Image - Square (1:1)
Square
- Size (px)
- Ratio
- 1:1
Sharethrough — Native Display - Square Image
Square · Native · Verified 2026-07
Live preview
600×600
shown at 77%
In context
Sample feed post
Full specification
Size (px)
Ratio1:1
Max weightUnder 1 MB (optimal ~750 KB)
FormatsJPG, PNG, GIF
Text limits
Headline
55 chars
Description
120 chars
Notes & best practice
Accepted square main-image size.
StackAdapt and STX accept both 1200x628 and 600x600.
The 600x600 size is StackAdapt's small square option used for 1:1 native placements.
Do not overlay text on the image.
Frequently asked questions
What size is the Sharethrough Native Display - Square Image?
The Sharethrough Native Display - Square Image is 600×600 px, aspect ratio 1:1.
What is the aspect ratio of the Sharethrough Native Display - Square Image?
1:1. At the recommended resolution that is 600×600 px.
What is the maximum file size for the Sharethrough Native Display - Square Image?
Up to Under 1 MB (optimal ~750 KB), in JPG, PNG, GIF.
What file formats does Sharethrough accept for the Native Display - Square Image?
JPG, PNG, GIF.
Why does Sharethrough crop my Native Display - Square Image?
Sharethrough shows Native Display - Square Image at 1:1. Upload exactly 600×600 px and keep key content in the safe area so nothing gets cut off.
Is 600×600 still correct for the Sharethrough Native Display - Square Image in 2026?
Yes. Last verified 2026-07 against the official Sharethrough documentation.
Check your creative
Test a file against this exact spec before you upload it anywhere.
Nothing is uploaded or saved — the check runs entirely in your browser.