Optimization5 min read
How to Convert Images to WebP for Free and Improve SEO
WebP is the ideal format for web images. Learn why to use it, how to convert for free, and how it improves your site's speed and SEO.
Why WebP improves SEO
Google includes LCP (Largest Contentful Paint) and FCP in Core Web Vitals, which are ranking factors. WebP images are 25-35% smaller than JPEG/PNG at the same quality, directly speeding up page loading.
How to convert to WebP in 3 steps
- Open the Convert WebP tool on Lumageni.
- Upload one or more JPG, PNG, or HEIC images.
- Download the converted and compressed WebP files.
When not to use WebP
- Emails: mail clients like Outlook still don't support WebP.
- WhatsApp and messaging apps: may convert automatically.
- Print: use TIFF or high-resolution PNG.
- Legacy systems: check compatibility before migrating.
Practical tip: In modern Next.js and WordPress, you can serve WebP automatically with the optimized image component without manually converting original files.
Want to try it now?
Every tool mentioned in this article is available on Lumageni.