Check Image Dimensions on Any Website — Free Online Tool<br>Check Image Dimensions on Any Website<br>Enter a URL to instantly check the dimensions of every image on the page — natural file size, rendered size, and visibility, all in one report.
How It Works<br>Enter the full URL of any website (including https://)<br>Our service will scan the page and render all JavaScript<br>We'll analyze every image on the page, including background images<br>View detailed information about each image's dimensions and properties
Natural Dimensions<br>See the original size of each image file
Rendered Size<br>Compare with how images appear on the page
Complete Analysis<br>Includes HTML and CSS background images
Enter a URL to analyze<br>Enter Website URL<br>Find Image Dimensions<br>Note: For best results, enter the complete URL including the protocol (https://).<br>This tool respects website robots.txt files and privacy policies. Some images may not be accessible due to CORS restrictions.
Image Optimization Guides<br>References and walkthroughs for getting images right on the modern web.<br>Best Image Sizes for Websites<br>Recommended dimensions for hero, blog, thumbnail, OG, and favicon images.<br>Shopify Image Sizes<br>Product, collection, slideshow, and logo sizes for Shopify stores.<br>WordPress Featured Image Size<br>Featured image, default sizes, WebP support, and storage tips for WordPress.<br>Open Graph Image Size<br>Per-platform OG image dimensions, required tags, and testing tools.<br>Hero Image Size<br>Above-the-fold dimensions, mobile art direction, and Core Web Vitals impact.<br>Squarespace Image Sizes<br>Banner, gallery, product, and blog header sizes for Squarespace 7.1.<br>Webflow Image Dimensions<br>Hero, CMS, slider, and Ecommerce sizes for Webflow projects.<br>E-Commerce Product Image Dimensions<br>Cross-platform product image sizes — Shopify, WooCommerce, BigCommerce, Magento.<br>Email Header Image Size<br>Per-client header image dimensions for Gmail, Outlook, and Apple Mail.<br>Find Oversized Images on Your Website<br>Why oversized images hurt performance and how to spot them.<br>Natural vs Rendered Image Dimensions<br>The difference between an image's file size and how it's displayed.<br>Image Formats Compared: WebP vs PNG vs JPEG<br>When to use each format, with file size and quality comparisons.<br>Image Optimization Checklist<br>A practical checklist for making site images smaller and faster.<br>How to Check Image Dimensions on a Website<br>Three ways to inspect image sizes on any page — devtools, source, and tools.
More Tools<br>Other free utilities for working with images and dimensions. Converters run entirely in your browser — files never leave your device.<br>PNG to WebP Converter<br>Convert PNG to WebP in your browser. No upload, adjustable quality, batch support.<br>JPG to WebP Converter<br>Convert JPG / JPEG to WebP locally. Same engine, same privacy guarantee.<br>Image Dimension Finder<br>Find the dimensions of a single image from its URL.<br>Responsive Image Tester<br>See how an image scales across viewport sizes.