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About this tool
Legacy formats increase payload size and hurt Core Web Vitals on media-heavy pages.
How to use
- Add source images in JPG or PNG format.
- Choose lossy or lossless mode based on design constraints.
- Export WebP files and replace old assets in your bundle.
FAQ
Should I replace all PNG files with WebP?
Replace where visual fidelity is maintained and alpha support is sufficient.
Is quality 80 a safe default?
It is a practical starting point, then adjust by visual diff review.
Can this be used for SEO image optimization?
Yes, smaller image payloads reduce LCP and improve crawl efficiency.