#image-size
Practical guides for online sellers: product photos, marketplace listings, video ads and growing your store.
Wix Product Image Size (2026): 3000×3000, Aspect Ratios and Cropping Fixes
Wix's official 3000×3000 recommendation, the seven accepted ratios, why galleries crop images, video specs, and how to bring small photos up to size.
Amazon Hero Image Size (2026): Main Image, Brand Store and A+ Content
"Hero image" means three things on Amazon. The sizes and rules for the main product image, the Brand Store hero and the A+ Content header, side by side.
Favicon Size (2026): Every Size, File Name and HTML Tag You Need
Every favicon size and where it's used, Google Search's current requirements, ICO vs PNG vs SVG, and a table of file names and HTML tags to copy.
What Is Pixel Ratio? Device Pixel Ratio, Pixel Aspect Ratio and Image Sizes (2026)
What device pixel ratio and pixel aspect ratio mean, how they differ from aspect ratio, and how wide to export product images for 1x, 2x and 3x screens with srcset.
16:9 Aspect Ratio (2026): Resolutions in Pixels, from 720p to 4K and 8K
Every common 16:9 resolution from 640x360 to 8K, where sellers need widescreen images, how to calculate 16:9 sizes and how to turn a square product photo into 16:9.
1:1 Aspect Ratio (2026): Square Pixel Sizes for Every Platform
The 1:1 square size each marketplace and social platform expects, common square sizes from 500 to 3000 px, and how to make a photo square without cutting off the product.
YouTube Banner Size (2026): 2560x1440, Safe Area for TV, Desktop and Mobile
YouTube's official channel banner size, minimum size and 6 MB file limit, the safe area each device shows, and how to turn product photos into a banner that survives every crop.
Google Business Profile Photo Size (2026): Logo, Cover, Product Photos and Video
Google's official Business Profile photo and video requirements, what Google doesn't specify for logos and covers, which photos a shop should add, and why photos get rejected.
Facebook Story Size (2026): Dimensions, Safe Zones, Video Length and Ad Specs
Meta's numbers for Facebook Stories and Story ads: dimensions, safe zones in pixels, video length, file limits, and how to fit product photos to a full-screen Story.
Email Header Image Size (2026): Width, Retina, File Size for Mailchimp and Klaviyo
The right width for a newsletter header, what Mailchimp and Klaviyo's docs actually recommend, the retina 2x rule, file sizes, heights and a layout that works in every inbox.
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