About this tool
WebP delivers the same visual quality as JPEG at roughly 25 to 35 percent smaller file sizes, and it supports transparency like PNG — which is why every major browser and CDN recommends it. This converter turns your existing JPG and PNG images into WebP without an upload: drop a batch, pick a quality level, and download compact .webp files ready for your site. The live size comparison shows exactly how many bytes each conversion saves, so you can tune the quality slider with evidence instead of guesswork. Transparent PNGs keep their alpha channel, and photographic JPEGs typically shine around quality 80. Batch conversion handles whole asset folders in one pass, making it practical to modernize an existing site's imagery in an afternoon. Since conversion runs on your machine via the canvas encoder, unreleased designs and client assets stay private — nothing is transmitted, queued or stored. Smaller images mean faster pages, better Core Web Vitals, and happier visitors on slow connections.
How to use Convert to WebP
- Drop JPG or PNG images into the upload area.
- Set the WebP quality — 80 is a good starting point for photos.
- Press Convert and review the per-image size savings.
- Download the .webp files individually or all at once.
Frequently asked questions
Why use WebP instead of JPEG or PNG?
WebP files are typically 25-35% smaller than JPEG at the same quality and support transparency like PNG, improving page speed.
Is WebP supported by all browsers?
Yes. Every modern browser — Chrome, Firefox, Safari, Edge — has supported WebP for years.
Do transparent PNGs keep transparency?
Yes. The alpha channel is preserved when converting PNG to WebP.
Are images uploaded to a server?
No. Conversion happens locally in your browser; nothing leaves your device.