Square Thumbnail – Sizes & How to Create (Free)

Square thumbnail images are 1:1 previews used by YouTube, blogs, marketplaces, and app stores. Getting the size and composition right ensures your content looks professional in grids and feeds.

Square Thumbnail Sizes

• YouTube: 1280×720 (not square) for video; channel art uses different specs. For playlist thumbs, 320×180. Square thumbnails (1:1) work for some embeds.
• Blogs / Cards: 400×400, 600×600, or 800×800. Match your theme.
• App stores: Varies; 1024×1024 for iOS app icons.
• E-commerce: 800×800 or 1000×1000 common for product grids.

A square thumbnail keeps layouts tidy and consistent. Use blur background or crop to create 1:1 thumbnails from any source image.

Create square thumbnails — free tool, export 256–4096px.