PDFConvertersOnline.comHow to convert JPG to WebP
- Choose your JPG photos. Batches of product or blog images are fine.
- WebP is selected. Adjust quality if needed; 85% is the default.
- Convert and download the .webp files, or the whole set as a ZIP.
Why websites switch to WebP
Images are usually the heaviest part of a web page. WebP typically produces smaller files than JPG at comparable visual quality, so a gallery or product page loads faster and uses less mobile data. Google's own documentation for the format cites lossy WebP files that are roughly a quarter to a third smaller than equivalent JPGs; real savings vary with the picture and the quality you choose. Page speed also feeds into how visitors experience a site, which is why site owners, bloggers and shop builders often convert their photos before uploading.
All current major browsers display WebP, including Chrome, Edge, Firefox and Safari, so for images on a website it is a safe default today.
Picking a quality value
- 85% (default) – a good balance for photos on web pages.
- 75–80% – noticeably smaller, still clean for thumbnails and blog images.
- 90% and up – for hero images or photography portfolios where fine detail matters.
Remember that your JPG was already compressed. Converting a heavily compressed JPG at a very high WebP quality won't restore detail and can even make the file bigger. If a WebP ends up larger than its JPG, lower the quality or keep the JPG.
Where WebP isn't the right choice
WebP is built for display on the web. For sending photos by email, printing, or handing files to someone using older software, JPG is still the more compatible choice. Some upload forms (for example on older job or government portals) don't accept .webp at all. Keep your original JPGs as masters and use WebP copies for publishing.
Batch workflow for a blog or shop
- Collect the photos for a post or product range in one folder.
- Resize them to your layout width if they come straight from a camera.
- Drop the folder's JPGs here, convert, and download the ZIP.
- Upload the .webp files to your media library and use them in the page.
Also worth doing before you publish
Camera photos are often much wider than any web layout needs. Resize them to the width your site actually displays with Resize Image; that alone can cut the size more than any format change. The WebP files made here don't include the JPG's EXIF data, so camera details and GPS coordinates aren't published along with your pictures.
Conversion runs locally in your browser. Your photos stay on your device.
More ways to use this tool
Frequently asked questions
Does WebP look worse than JPG?
At the same file size WebP usually looks as good or better. At the default 85% quality most people can't tell the two apart.
Can I convert WebP back to JPG later?
Yes, with the WebP to JPG converter. Each lossy conversion loses a little detail, so it is best to keep your original JPGs.
Why can't my browser create WebP files?
Chrome, Edge and Firefox can. Safari shows WebP images fine but may not be able to create them; in that case the tool says so and you can pick another format or browser.
Will WordPress and online shops accept WebP?
Most modern platforms do, including recent WordPress versions. If a platform rejects the file, upload the JPG instead.
Should I convert all my photos to WebP?
Only the copies you publish on the web. For backups, printing and sharing with other people, keep JPG, which is supported everywhere.
What happens to the image size in pixels?
Nothing. The WebP has exactly the same width and height as the JPG; only the way it is compressed changes.