SEO Image-Inspector with Helpfile

SEO Image-Inspector with Helpfile shows you, with a single click, right on any web page, how well your images are set up for Google and for your visitors – no need to open developer tools. Whether you run your own online shop, maintain a company website, or check a client's images as a freelancer, this extension makes visible in seconds what would otherwise take digging through browser dev tools or external SEO tools. How it works – step by step Open any web page and click the extension icon in the toolbar. A small info box appears instantly right on top of every image on the page – no separate window, no table to scroll back and forth through. Scroll the page normally: the boxes move along with the images, even with sticky headers or content that loads in afterward. Images that are technically flawed (missing alt text, too large, too slow) are instantly recognizable by color and icons, without having to read every single box. When you're done, click the icon again – all boxes disappear, the page stays unchanged. What each info box shows in detail Natural resolution → displayed size. An image delivered at 2000×1500 pixels but displayed at only 400×300 pixels wastes bandwidth on every single page load. The box shows both values side by side and flags a significant oversize with color. File size and file type. The image format in use is visible at a glance. Older online shops in particular often still use uncompressed, outdated formats that could easily be replaced with more modern, smaller ones – often 25–50% smaller at the same visual quality. Alt text, readable directly. Not hidden behind a hover – shown right in the box, so you can scan an entire page and instantly see where alt text is missing or inappropriate. Missing alt text is one of the most common SEO and accessibility mistakes on the web, flagged with a red warning icon. Warnings for large or unnecessarily bloated images. Images over 200 KB, or images loaded far larger than they're displayed, get a red outline and a warning icon – exactly the images that hurt Core Web Vitals like Largest Contentful Paint the most, which can indirectly affect Google rankings. Built for beginners: the built-in help page The biggest difference from plain analysis tools: this extension doesn't just tell you WHAT is wrong – it links directly to a clearly written help page that explains, step by step, WHY a value matters and HOW to fix it – written for people without a technical background, not for developers. File names, alt text, file size, modern image formats, or fixed dimensions to prevent layout shifts: every point is explained using a simple, everyday analogy (images as shipping packages, file names as shelf labels), so that even beginners can fix the biggest problems themselves without hiring an agency. The info link sits right in the extension's toolbar, next to the close button, always just one click away – even in the middle of an active analysis. Open and save images directly Every info box has two small actions: open the image in a new tab, or download it straight through the browser's native "save as" dialog – handy for quickly grabbing a reference image, checking the original resolution, or exporting an image for reuse (e.g. in a product description or a presentation) without digging through the page source or dev tools. Honest about technical limits For some images from third-party servers (e.g. CDNs or embedded third-party content), no browser can determine the file size – that's a deliberate security boundary built into every browser (a missing Timing-Allow-Origin header on the third-party server), not a limitation of the extension itself. Instead of hiding that or just showing "0 KB", the extension shows "n/a" transparently with a mouseover explanation, and offers a click-to-retry for the cases where an image simply hadn't finished loading during the first scan. Built for real-world use Works with lazy loading. Many modern online shops only load images once they scroll into view. The extension recognizes common lazy-loading patterns (data-src, data-lazy-src, and similar) and preloads the real images invisibly in the background to deliver correct values even for images not yet visible on screen. No chaos with tightly packed small images. If several info boxes overlap (e.g. on icon rows or small product thumbnails), they fan out visibly and alternate between two slightly different shades. Whichever box you hover jumps automatically to the front, no manual dismissing required. Each box can be closed individually if it's ever in the way – handy on image-heavy pages. Fully bilingual. German and English, automatically matching the user's browser language, including every label and tooltip. Minimal permissions The extension deliberately keeps its permission footprint small: access only to the currently active tab at the moment you click the icon (no standing access to every website you visit), plus the standard downloads permission for the "save as" feature. There's no tracking, no data sent to external servers, and no ads. Frequently asked questions Does the extension slow down my browser? No – it only becomes active when you click the icon, and runs exclusively on the currently open page. Without an active analysis, it has zero effect on other tabs or overall browser speed. Does this work on every website? On the vast majority of regular websites, yes. Internal Chrome pages (chrome://) and the Chrome Web Store itself don't allow any extensions to run there, for security reasons built into the browser. Why do I sometimes see "n/a" for file size? See above – that's a security boundary of the browser for images from third-party servers, not a limitation of the extension. Is my data sent anywhere? No. The entire analysis runs locally in the browser. There's no server communication, no tracking, no analytics. Can I dismiss a single box without ending the whole analysis? Yes – every box has its own small close icon in the …