Compress images for Outbrain.
Drop your photos and download them under 2.5 MB, the file-size limit in Outbrain's image rules. The quality is lowered first and the pixel dimensions only when needed; the photo is never cropped. It runs in your browser; nothing is uploaded.
Under 2.5 MB per image, saved as JPG
Limits come from each platform's own help pages, summarised in the guides (checked 24 September 2026).
What Outbrain asks for.
Source: Outbrain Help Center — Ads Specs; What are Outbrain's best practices for creating content on Amplify?; How do I create a carousel campaign?; How do I add content to my campaign?; Outbrain Advertising Guidelines · checked 12 October 2026
Outbrain ad images: 1,200 × 800 pixels recommended, 3:2 ratio, PNG or JPG, 2.5 MB maximum; carousel cards are 1:1, up to 1,200 pixels.
- Limit used
- Under 2.5 MB per image, saved as JPG
- Pixels kept
- The rules checked here state no minimum pixel size, so the tool stops before the photo falls under a quarter of its original width.
- Size
- 1,200 × 800 pixels is the recommended image size for standard native ads
- Aspect ratio
- 3:2 is recommended for Standard campaigns and 1:1 for Carousel and App Install campaigns
- Formats
- PNG or JPG
- File size
- 2.5 MB maximum image weight
Compressors by platform.
Compressing for Outbrain, answered.
What is the image file-size limit on Outbrain?
2.5 MB per image, according to the rules summarised in the Outbrain guide. This tool saves each photo as a JPG under that size.
Is JPG accepted on Outbrain?
Yes. The formats Outbrain lists are PNG and JPEG.
Does compressing for Outbrain change the pixel size?
Only when lowering the quality is not enough to get under 2.5 MB. The rules checked here state no minimum pixel size, so the tool stops before the photo falls under a quarter of its original width.
Where do these figures come from?
From Outbrain Help Center — Ads Specs; What are Outbrain's best practices for creating content on Amplify?; How do I create a carousel campaign?; How do I add content to my campaign?; Outbrain Advertising Guidelines, read on 12 October 2026. Marketplaces update their rules; the official page is the final reference.
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