Resize Image to 400 x 400 px

Make any photo exactly 400 x 400 pixels, a common size for square posts, product photos and profile images.

400 x 400 px1:1 Runs on your device

400 x 400 · Step 1 of 3 · Add your photo

Drop an image to resize

or paste with Ctrl+V · JPG PNG WebP HEIC GIF · max 25 MB

400 x 400 pxBatch ready

Processed on this device. Nothing is uploaded.

How to

How to resize Image to 400 x 400 px

1.
Add your image. Any JPG, PNG, WebP, HEIC or GIF up to 25 MB.
2.
Fill or fit. Fill crops the image to 1:1 from the center. Fit adds a border to keep everything.
3.
Download. Save a 400 x 400 px image in the same format you added.

FAQ

400 x 400: questions

Add your photo and download. The size is already set to 400 x 400 pixels.

Yes. Drop several files and download them all as a ZIP.

Making a photo smaller keeps it sharp. The tool scales once from your original pixels.

No. Everything runs in your browser.

Checked

How we checked this page

Checked by the SizePort team on 3 October 2026.

We test the tool with sample photos before it goes live and check that the sizes on this page match what it produces. Rules and platforms change, so if something here is out of date, tell us and we will correct it.