WebP was built specifically to do what JPG does, but smaller — at an equivalent visual quality, a WebP file is typically 25–35% smaller than the same image as JPG. For a website carrying dozens of images, that difference adds up to a meaningfully faster-loading page with no visible trade-off for the visitor.
Upload your JPGs to JPG to WebP to convert them.
Why WebP is smaller for the same quality
WebP uses more modern compression techniques than JPG, which was designed decades earlier. Without getting into the technical detail, the practical result is that WebP can represent the same photographic detail using less data, particularly for the kind of smooth gradients and natural textures typical of photographs. The saving is not universal — some images compress only slightly better — but it is rarely worse, which is why it has become a sensible default for web images.
Steps
- Upload your JPG images to JPG to WebP.
- Download the WebP versions.
- Replace the JPGs on your site or in your content with the WebP files.
Browser support
WebP is supported by every current major browser — Chrome, Firefox, Safari, Edge — and has been for several years, so compatibility is no longer a practical concern for the vast majority of visitors. If your site or platform specifically requires JPG for some technical reason (certain email clients and older software still expect it), keep JPG for those specific uses and use WebP everywhere else.
Where the saving matters most
- Hero and banner images: large, prominent images where every saved kilobyte speeds up the page’s initial load noticeably.
- Image galleries and product grids: many images on one page compound the saving significantly.
- Mobile visitors on slower connections: the smaller the file, the faster it arrives, and the difference is most noticeable exactly where bandwidth is most limited.
Converting an existing site’s image library
If you are retrofitting WebP onto a site that has used JPG for years, there is no need to convert everything at once. Start with the highest-traffic pages and the largest images, where the improvement is most noticeable, and work through the rest of the library over time. Keep the original JPGs stored somewhere as a backup while you transition, in case any specific page or plugin still expects the older format.
Measuring the improvement
If you want to see the difference for yourself before committing to a full site-wide switch, pick one representative page and compare its total image weight before and after converting its images to WebP, using your browser’s built-in developer tools (most have a network tab that shows total page size and load time). Seeing an actual before-and-after number for your own content is more convincing, and more useful for prioritising which pages to tackle first, than relying on general percentage figures alone.
It is also worth checking how your specific website platform serves images — some content management systems and page builders can automatically generate and serve WebP versions alongside the originals, in which case uploading a well-optimised JPG and letting the platform handle the conversion may be simpler than converting everything manually yourself.
Frequently asked questions
Will WebP images look different from the JPG originals?
At an equivalent quality setting, no meaningful visible difference for typical photographic content.
Do I need to change anything else on my site to use WebP?
Just update the image files and their references (file names, links) — no other configuration is required for WebP to display correctly in modern browsers.
Can I convert a whole folder of JPGs at once?
Yes, upload multiple files together rather than converting them one at a time.
Does WebP support animation like GIF?
Yes, WebP can be animated, though this guide focuses on static photo conversion, which is the most common use case.
Is the tool free and private?
Yes. No sign-up, no watermark, and files are removed from the server automatically about an hour after processing.