The recommended Email Email newsletter header spec is 600×200 px (3:1). Email body width is 600px. For retina, build 1200×400 and display at 600.
As a Coupang Partners affiliate, this site earns a commission from qualifying purchases.
| Platform | Placement | Recommended | Ratio | |
|---|---|---|---|---|
| Instagram feed (square) | 1080×1080 | 1:1 | Resize | |
| Instagram feed (portrait 4:5) | 1080×1350 | 4:5 | Resize | |
| Instagram feed (landscape 1.91:1) | 1080×566 | 1.91:1 | Resize | |
| Instagram Story / Reels cover | 1080×1920 | 9:16 | Resize | |
| Instagram profile picture | 320×320 | 1:1 | Resize | |
| Instagram ad (feed 1:1) | 1080×1080 | 1:1 | Resize | |
| YouTube | YouTube thumbnail | 1280×720 | 16:9 | Resize |
| YouTube | YouTube channel banner (channel art) | 2560×1440 | 16:9 | Resize |
"Fill" center-crops when the ratio differs. "Fit" pads with the chosen color. "Fit width" keeps the height ratio, for detail pages.
Drag the preview of a "Fill" result to move the crop.
JPG, PNG or WebP, quality 50–100. Each result card shows size and weight.
Tick several sizes to get one output per size. Upload several files to convert them all, then download with "Save all".
600×200 px, ratio 3:1. Email body width is 600px. For retina, build 1200×400 and display at 600.
Choose "Fit (padding)" to avoid cropping; with "Fill" you can drag the preview to move the crop.
Upscaling beyond the original blurs. Use the largest original you have; when downsizing, quality 90+ is visually lossless.