WebP has quietly become one of the most effective, low-effort ways to speed up a website, since converting existing images to it typically requires no redesign — just a format change.
What makes WebP worth the switch
WebP typically produces files 25–35% smaller than an equivalent-quality JPG, and it supports transparency like PNG while still compressing far more efficiently for photographic content. For a website with many images, converting to WebP can meaningfully reduce total page weight and improve load times without any visible quality tradeoff.
Browser support today
WebP is supported by all major modern browsers, which is why most major websites, content management systems, and image CDNs now use it as a default or preferred format. The days of needing a JPG fallback for compatibility are largely behind us for mainstream audiences, though some older or specialized software outside the browser may still lack support.
How to convert an image to WebP
- Upload your existing JPG or PNG to a converter that supports WebP output.
- Select WebP as the target format.
- Choose a quality setting — 80–85 is a good starting point for photos, balancing file size and visual quality.
- Download the converted file and compare it against the original to confirm quality looks right for your use case.
Converting an entire image library
If you’re upgrading an existing website rather than just a single image, converting one file at a time isn’t practical. Batch conversion — uploading many images at once and converting them all to WebP together — turns what could be a day-long task into a few minutes.
One thing to keep in mind
If your website or platform doesn’t yet support WebP uploads or display, converting won’t help until that’s addressed on the platform side. Check whether your CMS, theme, or hosting setup accepts WebP files before converting your entire library, though this is rarely an issue with any reasonably modern setup today.
Our resizer converts between JPG, PNG, and WebP in the same step as resizing, making it easy to modernize an image library’s format while you’re already resizing for other reasons.