⬜Square Image Maker

Most product photos come out of a camera at 3:2 or 4:3, but nearly every storefront grid is square. Crop and you lose the edge of the product; upload as is and the marketplace crops for you, often through the handle of a mug or the toe of a shoe. The Square Image Maker solves this the other way round: it makes a square photo without cropping by adding padding around the picture, so the whole product stays visible and every thumbnail in your catalogue lines up. If you have ever searched for how to make image square without losing anything, this is the answer.

How it works

1. Drop the images you want to fix, up to 200 at a time.
2. Choose the target ratio. 1:1 is the default, and 4:5, 4:3, 3:4, 16:9 and 9:16 are there for social posts and banners.
3. Pick the fill: a solid colour (white by default, or any hex value) or a blurred fill that stretches a soft copy of the photo behind it.
4. Set a margin percentage if you want breathing room, and an output size such as 2048 or 2000 px.
5. Process, check the previews, and download individually or as a ZIP.

The tool works out the longer side, centres the original inside a canvas of the chosen ratio and paints the padding. Nothing in the photo is resampled unless you also ask for an output size, so detail is preserved. It is the simplest way to add padding to image files in bulk.

Why it matters

Square is the default in e-commerce and the numbers are strict enough to fail an upload:

• Shopify recommends 2048×2048 px product images and warns that inconsistent aspect ratios break collection grids.
• Daraz accepts square images only, from 330×330 up to 3000×3000 px, with roughly 3% tolerance.
• TikTok Shop wants 1:1 between 600 and 4000 px.
• Amazon main images are typically 2000×2000 and must sit on pure white (RGB 255, 255, 255), which is exactly what the white fill gives you.
• Instagram feed posts look best at 1080×1080 or 1080×1350 (4:5).

Padding rather than cropping also keeps the product from being cut off, which is a requirement rather than a preference on most marketplaces.

Tips

• Use white fill for marketplace main images and blurred fill for lifestyle or social images where a flat border would look odd.
• Amazon expects the product to fill at least 85% of the frame, so keep the margin low (0 to 5%) for main images; for a long or wide item you may need to crop first with the Image Cropper.
• Set the output size at the same time so the whole batch leaves at 2048 px for Shopify or 2000 px for Amazon, or hand it to the Amazon Product Image Resizer afterwards.
• For a visible frame around the padded image, run the results through the Add Border / Frame tool.
• For story and reel sizes, the Social Media Image Resizer already knows the exact dimensions.

Privacy

Everything is done with the Canvas API inside your browser. Your images never leave your browser, no upload takes place and there is no account to create, so you can process an entire catalogue on a train with no connection.