Chrome Web Store promo tile dimensions
The required small promo tile is 440 x 280 px. An optional marquee promo tile for featured placement is 1400 x 560 px.
Full specification
Dimensions
440 x 280 px (small, required). 1400 x 560 px (marquee, optional)
Aspect ratio
11:7 small tile. 5:2 marquee
Accepted formats
PNG or JPEG
Requirements
The small promotional image, 440x280 px, is required for every listing.
The marquee promotional image, 1400x560 px, is optional and used for featured placement; it can’t be localized per-language.
Extension icon: 128x128 px total, with the actual artwork at 96x96 px and 16px of transparent padding per side. Must be PNG.
Screenshots: at least 1, up to 5, at 1280x800 px, 640x400 px also accepted. Square corners, full bleed -- no padding or rounded corners.
Common reasons submissions get rejected
Uploading the marquee-sized image into the small tile slot, or vice versa -- they’re not interchangeable.
Screenshots with padding, drop shadows, or rounded corners -- Chrome expects square-corner, full-bleed images.
Export at this size with PreviewKit
PreviewKit doesn’t have a dedicated preset for this yet. Choose Custom size and enter these exact dimensions to export.