Image Size Overlay

Highlight every image with its natural dimensions and file size, toggled via the toolbar.

Image Size Overlay turns any webpage into a quick visual audit tool. Click the toolbar button to outline all images in red and display their natural size and estimated file weight. Instantly spot oversized assets, layout issues, or mismatched resolutions—no DevTools needed. Runs only when toggled on, then cleans up in one click. Works with responsive and lazy-loaded images, updating as sources change. Fast, private, and ideal for designers, developers, and editors who need pixel-perfect checks right in the browser.