Square Online product image requirements
Square Online item images: at least 2,000 × 2,000 pixels at 1:1 recommended, JPG, JPEG, PNG or GIF, up to 15 MB per image.
All Square Online image requirements
Source: Square Support Center — Upload and manage item images; Add images and backgrounds to your online store; Square Developer — Work with Images. Checked 12 October 2026. Read again · 12 October 2026
- Recommended
- At least 2,000 × 2,000 pixels with a 1:1 aspect ratio
- Formats
- JPG, JPEG, PNG and GIF
- File size
- Up to 15 MB per image in the US Support Center and the Catalog API; the UK edition of the same article says up to 20 MB and recommends 500 KB or less for faster page loading
- Maximum
- The UK edition of the article states that images can be up to 2,560 × 2,560 pixels
- Number
- The Catalog API allows no more than 250 images attached to one catalog object; bulk upload cannot associate multiple images with a single item or its variations
- Variation images
- Images can be added to specific item variations
- Alt text
- Alt text can be added to non-background images in the site editor
What Square Online asks for, covered.
Square recommends item images of at least 2,000 × 2,000 pixels in a 1:1 ratio. Square 2K output is 2,048 pixels wide, just above that. Square 4K output is 4,096 pixels wide, above the 2,560 × 2,560 maximum the UK edition of Square's article states, so 2K is the size to upload there. Herofab images can be downloaded as PNG or JPG.
Square, above 2,000
Square 2K output is 2,048 pixels wide, above the 2,000 × 2,000 pixels Square recommends.
2K rather than 4K
Square 4K output, at 4,096 pixels, is above the 2,560 × 2,560 maximum stated in the UK edition of the article.
PNG or JPG
Herofab images can be downloaded as PNG or JPG, two of the formats Square accepts.
Square Online, answered.
What size should Square Online product images be?
Square Online item images: at least 2,000 × 2,000 pixels at 1:1 recommended, JPG, JPEG, PNG or GIF, up to 15 MB per image.
Which file formats does Square Online accept for product images?
JPG, JPEG, PNG and GIF. Source: Square Support Center — Upload and manage item images; Add images and backgrounds to your online store; Square Developer — Work with Images, checked 12 October 2026.
How large can a product image file be on Square Online?
Up to 15 MB per image in the US Support Center and the Catalog API; the UK edition of the same article says up to 20 MB and recommends 500 KB or less for faster page loading. Source: Square Support Center — Upload and manage item images; Add images and backgrounds to your online store; Square Developer — Work with Images, checked 12 October 2026.
How many images per product on Square Online?
The Catalog API allows no more than 250 images attached to one catalog object; bulk upload cannot associate multiple images with a single item or its variations. Source: Square Support Center — Upload and manage item images; Add images and backgrounds to your online store; Square Developer — Work with Images, checked 12 October 2026.
Can I check my images before uploading?
Yes. The free image size checker reads each file in your browser and tests it against these rules; the image is not uploaded.
Where do these figures come from?
From Square Support Center — Upload and manage item images; Add images and backgrounds to your online store; Square Developer — Work with Images, read on 12 October 2026. Marketplaces update their rules; the official page is the final reference.
Your next collection, shot this week.
20 credits at sign-up, no card required. Images made with free credits carry a watermark.