ChatGPT Ads Image Resizer
Upload any image and resize it for ChatGPT Ads — 256×256 minimum, up to 1200×1200. Crop or fit, JPG or PNG, entirely in your browser.
Frequently asked questions
What image size do ChatGPT Ads require?
The minimum is 256×256 pixels. Square PNG or JPG at a publicly accessible URL. 1024×1024 or 1200×1200 is recommended for sharpest rendering, but it is a recommendation — not a minimum requirement.
Should I use Fill or Fit?
Fill (cover) crops the image to fill the square — best for photos. Fit (contain) scales the whole image inside the square with padding — best for logos and graphics with text.
JPG or PNG — which is better for ChatGPT Ads?
JPG for photos (smaller files). PNG for logos, graphics, or anything needing transparency. Both are accepted by Ads Manager.
Is my image uploaded anywhere?
No. Resizing happens entirely in your browser. Your image never leaves your device.
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