Website Image Size Checker
Analyze every image on any website and instantly check file size, dimensions, format, and image URL
About This Product
Website Image Size Checker
Website Image Size Checker is a free online image analysis tool that lets you inspect all images on any webpage in seconds.
Enter a website URL to instantly discover image file sizes, dimensions, formats, and direct source URLs. Quickly identify large or potentially unoptimized images that may affect website speed, performance, and user experience.
What You Can Check
- Image file sizes
- Image width and height
- JPG, PNG, WebP, SVG, GIF, and other formats
- Direct image source URLs
- Large and potentially unoptimized images
- All detected images on a webpage
Improve Website Performance
Large image files are one of the most common causes of slow-loading webpages. Finding oversized images can help you reduce page weight, improve loading speed, optimize Core Web Vitals, and create a better browsing experience.
Website Image Size Checker is useful for:
- Web developers
- UI/UX and web designers
- SEO specialists
- Digital marketers
- Website owners
- Performance optimization teams
Fast, Simple and Free
No installation or technical setup is required. Simply paste a webpage URL, start the analysis, and get a clear overview of every detected image.
Use Website Image Size Checker to find large images, inspect image dimensions, check image formats, and optimize your website faster.
Screenshots
Key Features
- Analyze all images on any webpage
- Check image file sizes instantly
- View image width and height dimensions
- Detect JPG, PNG, WebP, SVG, GIF and more
- Find large and unoptimized images
- Access direct image URLs
- Identify potential performance issues
- Fast, free and no installation required
How It Works
- Paste the URL of any public webpage you want to check.
- The tool fetches that page and scans every image it finds.
- Instantly see each image's file size, dimensions, and format.
- Spot large or unoptimized images that may be slowing your site down.
Why It Matters
Large, unoptimized images are one of the most common causes of slow-loading webpages, directly hurting Core Web Vitals metrics like Largest Contentful Paint (LCP) — the time it takes for the biggest visible element, often a hero image, to render.
Slow LCP doesn't just frustrate visitors. Core Web Vitals have been part of Google's page experience signals for years, meaning oversized images can indirectly affect how a page ranks in search results.
Finding and fixing oversized images — compressing them, resizing to the dimensions they're actually displayed at, or switching to modern formats like WebP — is one of the fastest ways to improve load times without a full redesign.
Frequently Asked Questions
What image formats does this tool support?
It detects JPG, PNG, WebP, SVG, GIF, and other common image formats used on the web.
Is my data sent to a server?
The webpage URL you enter is sent to our server so it can fetch and analyze that page's images. No account or personal information is required — only the URL and basic scan stats (like image count) are logged, and the image files themselves are never stored.
How can I reduce my webpage's size?
Start with the large or unoptimized images this tool flags — compress them, resize them to the dimensions they're actually displayed at, or convert them to a modern format like WebP.
Do I need to install anything?
No — it's a free online tool. Just paste a URL and start the analysis, no installation or technical setup required.
Is this tool free to use?
Yes, Website Image Size Checker is completely free.
