How to convert image to WebP
- Choose, drop or paste the images you want to convert.
- Set the quality with the slider.
- Compare the old and new size of each file.
- Download the WebP files one by one or as a ZIP.
Why websites use WebP
Images are often the heaviest part of a web page, and smaller images mean faster pages, especially on mobile data. WebP files are typically 25 to 35% smaller than JPGs of similar quality, and it handles transparency too, so it can stand in for both JPG and PNG.
Every current browser supports WebP, including Safari, Chrome, Edge and Firefox. For a small business website, a blog or an online shop, converting your photos before uploading is one of the easiest ways to make pages lighter.
Picking a quality setting
The slider controls how much detail is kept. Higher numbers look closer to the original with bigger files. Lower numbers save more space. A mid to high setting suits most photos on websites. Look at a converted image at full size before replacing all your originals, particularly for product photos where fine detail sells.
Size on screen matters as much as format. A photo 4,000 pixels wide shown in a space 800 pixels wide wastes most of its data whatever the format. Resize to roughly the largest size it will appear, then convert to WebP, and you get the biggest saving.
When to keep JPG or PNG instead
WebP is great for websites but not always elsewhere. Some older software, email clients and upload forms still expect JPG or PNG, so keep your originals and use WebP where you control how it is shown. If someone needs to open the file on their computer, a JPG is the safer bet.
Conversion happens in your browser and nothing is uploaded. Hidden metadata such as camera location is not copied into the WebP files, which is also a sensible default for anything you publish online.
Questions people ask
Is WebP better than JPG?
For websites, usually yes: similar quality in a smaller file, plus transparency support. For sharing files with people or older software, JPG is more widely accepted.
Does WebP support transparency?
Yes. Transparent areas in a PNG can stay transparent in WebP, which JPG cannot do.
Do all browsers support WebP?
All current major browsers do, including Safari on iPhone and Mac.
Should I convert my whole photo library to WebP?
It is better to keep your originals and use WebP copies for the web, since some apps and devices still do not open WebP.