Prepare listing assets by size
Turn existing screenshots, logos, and hero graphics into common Chrome Web Store dimensions: 128 x 128, 440 x 280, 1280 x 800, and 1400 x 560.
Chrome Web Store asset toolImages stay in your browser and are never uploaded to our server.
Chrome Web Store Asset Generator & Resizer
Turn product screenshots, logos, or campaign artwork into Chrome Web Store listing assets. Preview extension icons, small promo tiles, store screenshots, and marquee images before export.
Preview
Check each asset before export so the final listing stays sharp, centered, and review-ready.
Upload an image to preview the selected asset size.
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Upload image
Upload an image first, then download the selected asset size.
Chrome Web Store image sizes: icons, promo tiles, and screenshots
Prepare Chrome Web Store listing assets: extension icons (128 x 128), small promo tiles (440 x 280), screenshots (1280 x 800), and marquee images (1400 x 560). Upload one image, preview each size, check framing and padding, and export assets for the developer dashboard.
Preview before uploading
Common Chrome Web Store asset problems include the wrong screenshot ratio, promo text too close to the edge, and icons that lose clarity when reduced. Previewing the target canvas before export helps catch crop, padding, and sharpness issues earlier.
Local processing for private assets
If your screenshots include unreleased features, staging interfaces, or internal product details, local processing is a better fit. Resize, padding, crop, and export all run in the browser, so the source image does not need to be uploaded.
Official asset requirements and practical export targets
Chrome Web Store images appear in different contexts. Icons help recognition, screenshots explain functionality, and promo or marquee artwork supports discovery and merchandising. Getting the size right makes the listing look steadier across search, detail, and promotional surfaces.
Extension icon: 128 x 128 px
The 128 x 128 icon is the baseline identity asset for an extension. It appears across store and extension-related surfaces, so it needs to stay recognizable at small sizes.
Open referenceSmall promotional tile: 440 x 280 px
The 440 x 280 promo tile is a compact space for the extension's main value. A clear subject, logo, and short message usually work better than dense layout.
Open referenceStore screenshots: 1280 x 800 px
The 1280 x 800 screenshot shows the interface and feature outcome before installation. It should avoid stretching, blur, and cropped product details.
Open referenceMarquee image: 1400 x 560 px
The 1400 x 560 marquee image supports wider promotional layouts and fuller brand presentation. Even when not immediately needed, preparing it keeps the asset package more complete.
Open referenceFrequently Asked Questions
Common questions about Chrome Web Store image sizes, upload issues, screenshot ratios, and export formats.
What image sizes do I need for a Chrome Web Store listing?
A common Chrome Web Store asset set includes a 128 x 128 extension icon, a 440 x 280 small promo tile, 1280 x 800 store screenshots, and a 1400 x 560 marquee image. Screenshots may also use 640 x 400, but 1280 x 800 is better when you need to show interface detail. Always confirm current requirements in the developer dashboard and official docs before final submission.
Why does the Chrome Web Store reject my screenshots or promotional images?
A practical way to check is: 1. Confirm the exact pixel size first, such as 128 x 128, 440 x 280, or 1280 x 800. 2. Check whether the source aspect ratio is too different from the target, which often causes stretched UI or awkward cropping. 3. Review the preview and make sure the framing, margins, title text, and logo still look clear. 4. Export only after that, so you are not troubleshooting size errors, soft text, or edge issues inside the dashboard. This is usually faster than trial and error after upload.
What file format should I choose for Chrome Web Store assets?
PNG is usually safer for UI screenshots, text, icons, and sharp graphic edges. JPG can work for more photographic promo artwork. Extension icons should follow the official PNG requirement. Whether WebP is suitable depends on the current dashboard acceptance rules and the content of your asset.
What file size limits apply to Chrome Web Store images?
The official image specification page clearly documents required dimensions, icon format, and screenshot rules, but it does not list a single universal per-image size cap in the same place. If the developer dashboard shows a hard upload limit, you should follow the dashboard prompt. In practice, the best approach is to keep assets visually sharp while avoiding unnecessarily large files, which makes uploads smoother and helps listing pages load faster for users.
Does this Chrome Web Store asset tool upload my images?
No. The resize and export process runs locally inside your browser. Your source images, extension screenshots, and promotional graphics are processed on the client side and are not sent to our server.
Related tools
After preparing Chrome Web Store assets, you can compress, convert, or create other platform sizes.