Images are often the heaviest part of a webpage. If your site loads slowly, users leave—and Google notices. One of the easiest ways to improve your SEO and Core Web Vitals score is by simply changing your image formats.
Why Image Speed Matters for SEO
Google uses a metric called LCP (Largest Contentful Paint) to judge your website's speed. If your hero image takes 3 seconds to load, your SEO ranking suffers.
Traditionally, we used PNG for transparent images and JPG for photos. But these formats are decades old. PNGs, in particular, can be massive in file size, slowing down mobile users on 4G or 3G connections.
Enter WebP: The Modern Standard
WebP is a modern image format developed by Google. It provides superior lossless and lossy compression for images on the web.
- Smaller Sizes: WebP images are typically 25-34% smaller than comparable JPEG and PNG images.
- Transparency Support: Unlike JPEG, WebP supports transparency (alpha channel) just like PNG, but at a fraction of the file size.
- Browser Support: As of 2025, WebP is supported by all major browsers including Chrome, Safari, Edge, and Firefox.
How to Convert Your Images
You don't need expensive software like Photoshop to optimize your web images. Our Image Converter tool runs directly in your browser.
Because it's client-side, you can drop in a 5MB PNG file, convert it to WebP, and download a 400KB version instantly. This massive reduction in file size will make your website load faster, making both your users and Google's search algorithms happy.
Convert to WebP
Reduce file size by up to 80% instantly.
Conclusion
If you are still serving raw PNGs or uncompressed JPEGs, you are leaving SEO rankings on the table. Switching to WebP is a "quick win" for performance. Use our converter today to audit your site's heaviest assets and replace them with lighter, faster alternatives.