H5Kit

Convert to WebP

Free online image converter: turn JPG and PNG into the smaller WebP format. Converts locally in your browser — no file upload required.

About this tool

WebP is a modern image format from Google. At the same quality it is 25%–35% smaller than JPG and also supports transparency. This tool converts between JPG, PNG and WebP, entirely in your browser.

How to use

  1. Click or drag to select an image
  2. Choose the target format (WebP / JPG / PNG)
  3. Adjust the output quality
  4. Click download to save the converted image

FAQ

How well supported is WebP?

All major browsers (Chrome, Edge, Firefox, Safari 14+) support WebP, so it is safe to use on websites today.

Will quality get worse after conversion?

WebP uses a more advanced compression algorithm and beats JPG at the same file size. A quality setting around 80 gives a great balance.

What happens to transparency when converting PNG to JPG?

JPG does not support transparency; transparent areas become white. Choose WebP to keep the transparent background.

Can I use an iPhone HEIC or HEIF photo?

Yes. HEIC and HEIF photos are decoded locally in supported modern browsers and exported as JPG, PNG or WebP.

Related tools