Chrome Extension Screenshot Resizer

640 x 400 OR 1280 x 800 — the ONLY accepted Chrome Web Store screenshot sizes.

The Chrome Web Store accepts screenshots at exactly TWO dimensions: 640 x 400 OR 1280 x 800 pixels. Any other size is rejected by the upload validator. This is a strict requirement; visually-close-enough doesn't pass.

This tool takes any source image, applies center-crop to match the 1.6:1 ratio, and outputs dimensionally-exact PNGs at both required sizes. Processed entirely in your browser; no upload, no signup, no watermark.

Upload Source Image

Upload at least 1280 x 800 pixels for best quality. Source aspect ratio doesn't need to match 1.6:1 — the tool will center-crop.

Click to upload or drag and drop

PNG or JPG supported

Download

Both screenshot sizes in one ZIP, Web Store-ready.

Processed entirely in your browser. No files are uploaded.

Promo tiles needed?

Chrome Web Store also requires promo tiles (440x280, 920x680, 1400x560). Generate them with the companion tool.

Promo Tile Generator

Frequently Asked Questions

Click on a question to view the answer.

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Chrome Extension Screenshot Resizer

Promo tiles needed?

Frequently Asked Questions

What screenshot sizes does the Chrome Web Store require?

Why does the Web Store reject my screenshots?

What if my source screenshot is a different aspect ratio?

Should I use 640x400 or 1280x800?

How many screenshots should my Chrome Web Store listing have?

Does the tool upload my screenshots anywhere?

Can I add text/captions to the screenshots in this tool?

Do I need to pay to use this tool?

Don't see the tool you need? We'll build it for you.

Don't see the tool you need?
We'll build it for you.