Nevquo Pixel › Website image analyzer
Website image analyzer
Paste the address of any public web page and see every image it loads: its format, its size in kilobytes and an estimate of how much smaller it could be. It is free, needs no account, and the page you scan is not changed in any way.
Only the address you type is sent to us, and we do not keep it. Privacy statement.
What you get
- Every image the page asks for, including pictures set as backgrounds, share-preview images, icons and alternatives offered through the
pictureelement. - The real file size and format, read from the file itself, so a server that labels a PNG as a JPEG does not fool the report.
- Pixel size against the space it is shown in, when the page states a width, so a 3000 px photo squeezed into a 300 px slot is flagged.
- An estimated saving for each image and for the whole page, shown as a range, with a link to the tool that does the work.
How the estimate works
The analyzer does not download whole images, and it does not compress anything. It reads the first part of each file to learn its type, size and pixels, then applies a range worked out from our own published benchmarks. A photo saved as PNG usually shrinks the most, a JPEG less, and a file that is already AVIF hardly at all. Pictures on real websites are often tuned already, so the ranges are cautious and wider than our test results.
The real saving appears when you optimize the file. The estimate is there to show you which images are worth your time first.
What it cannot see
- Images that a script adds after the page loads. The analyzer reads the page's HTML and does not run scripts.
- Pages that need a login, block automated visitors (large search, social and shopping sites often do) or are not on the public internet. Private, local and numeric addresses are refused.
- More than the 30 most important images on one page, and the first 1.5 MB of a page's HTML.
Your browser cannot fetch another site's images for you. To shrink the ones you find, save the files (right-click, Save image) and drop them on the tool page. They are processed on your device and never uploaded.
Frequently asked questions
Is the website image analyzer free?
Yes. There is no sign-up, no scan counter and no paid tier. To stop automated abuse, each visitor can run a limited number of scans per minute.
What is sent to your servers?
Only the page address you type. Our service fetches that public page and the first bytes of its images, replies to your browser and keeps nothing. Your own images are never involved; they are optimized in your browser, as on every other Nevquo Pixel page.
How accurate are the savings?
They are estimates shown as ranges. They come from the image type, size and pixels, calibrated on our published benchmarks and widened because many website images are already optimized. Optimizing the file in the tool gives the real number.
Why does it say a site would not let the scanner in?
Some sites, mostly large ones and those behind bot protection, refuse automated visitors and answer with an error such as 403 or 429. That is the site's choice, and the analyzer does not try to get around it. Try another page of the site, or a site you own.
Why are some images missing?
The analyzer reads the page's HTML and does not run JavaScript, so images a script adds later are not seen. It also measures at most 30 images per page and reads the first 1.5 MB of the HTML.
Can it scan a page on my own computer or a private network?
No. Addresses on private or local networks, numeric addresses and unusual ports are refused, so the analyzer can only be pointed at public websites.
Does it change or slow down the site I scan?
No. It loads the page once and asks for the first 64 KB of each image, about as much as one visitor would, and it identifies itself as NevquoPixelAnalyzer in the request.