Image Size Inspector
Inspect any image size instantly, right from the page.
What it is
Image Size Inspector is a free Manifest V3 Chrome extension that reports image properties without opening developer tools. Right-click any image on any webpage and it shows the original dimensions, the rendered display size, the file size and the format in a clean popup. All processing happens locally in the browser, so no image data leaves the machine.
What it does
One-click inspection
Right-click any image and pick Inspect Image Size from the context menu to see its details in a popup.
Dimensions side by side
Shows the original image dimensions next to the rendered display size so layout mismatches are easy to spot.
File size analysis
Calculates file size using multiple fallback methods, including images served from a CDN.
Wide format detection
Recognises nine or more formats including JPEG, PNG, WebP, GIF, SVG, BMP, ICO, AVIF and TIFF.
Accessibility and colour tools
Surfaces alt text, title and ARIA labels for SEO and a11y audits, plus a colour picker and palette extraction.
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