Why use WebP on a website
Images are usually the heaviest part of a web page. WebP files are roughly 25-35% smaller than JPG at equal quality, which shortens load times and improves Core Web Vitals such as Largest Contentful Paint. Chrome, Safari, Firefox and Edge all display WebP.
For even smaller files, try AVIF (choose it under Save as) - about half the size of JPG, supported by all current browsers.
Recommended settings
Quality 75-82 suits most photos. Resize to the size the image is actually displayed at - a 4000 px photo shown 1200 px wide wastes most of its bytes. A maximum side of 1920 px covers full-width images on most screens.
How to convert JPG to WebP
- Drop your images onto the box above, click it to choose them, or paste a screenshot.
- Check the settings. They are already set for this task, and you can change any of them.
- Download each image, or all of them at once as a ZIP. Click a thumbnail to compare before and after.
Images are processed as soon as you add them. Change a setting and press Apply to all again to redo the batch.
How your files stay private
Most free converters upload your file, process it on their server and send the result back - so a copy of it passes through somebody else's machine. This page does all of the work in your browser instead. The files you choose are read into memory on your own device, processed there and handed back as a download; none of their contents is transmitted. You can switch off Wi-Fi after the page has loaded and it keeps working.