How to use this page
- Choose a JPG, PNG or WebP image.
- Pick crop-to-fill or fit-the-whole-image for the 1200 × 1200 canvas.
- Create the result on this device and download the 1200 × 1200 file.
Worked example: a square ad from a tall poster
A 1000 × 1500 poster will lose top and bottom in a 1200 square crop. Keep the headline inside the centre band, or fit the whole poster on a coloured square if the type cannot be cropped.
What this job is for
Use this when a site asks for a square around 1200 pixels and does not name a platform. For Instagram’s 1080-pixel feed square, use the Instagram post size page instead so the canvas matches that guide.
Useful limits
After you have the square, use the compressor only if the host also states a file-size limit.
The live tool behind this page is Image Resizer. It is the same local engine as the rest of Image Cosmos.
Frequently asked questions
Is 1200 × 1200 the Instagram size?
No. Instagram feed squares are commonly exported at 1080 × 1080. This page is a generic 1200-pixel square.
Fit or crop?
Crop when the subject can lose edges. Fit when the whole object must stay visible.
Does the image upload?
No. Resizing stays in the browser.