Drop JPG photos here
or
.jpg and .jpeg · as many as you like · nothing leaves your device
Why WebP?
WebP files are usually smaller than JPGs at the same look, which helps web pages load faster. Drop the photos in, then save them one by one or all together as a zip. Your browser must be able to make WebP (Chrome, Edge and Firefox can; Safari on some Macs cannot).
How to use it in 4 steps
- 1Drop your JPG photos onto the box, or press Choose photos.
- 2Each is converted and shows a preview with its new size.
- 3Press Save, or Save all as one zip.
- 4Upload the WebP files to your website or blog.
Why convert JPG to WebP
WebP files are usually noticeably smaller than JPG files of the same visual quality. Converting your website pictures from JPG to WebP is one of the easiest ways to make pages load faster, and visitors on phones use less data. This page makes the conversion in your browser, so nothing is uploaded.
When to keep the JPG
Keep JPG for pictures you will share by email, print or send to someone using older software, since JPG opens everywhere. Use WebP where you control the page and know modern browsers will show it. Converting a JPG that is already heavily compressed will not make a big difference, and it cannot add back lost detail.
Getting the best result
Start from the original, highest-quality photo if you still have it. Convert once rather than repeatedly, because each lossy conversion can lose a little more detail. If you also need a different pixel size, use Resize image first.
Related tips
A quick example: speeding up a gallery page
You run a small website with 12 photos on its home page, each a JPG of about 600 KB. Together that is over 7 MB, which is slow on a phone. Drop all 12 onto this page and save the zip. The WebP files are commonly 25 to 35 per cent smaller than the JPGs for the same picture, which would bring the total down to roughly 5 MB.
Upload the WebP files to your site and keep the JPGs somewhere safe as your masters.
Good to know
Measure the saving rather than assuming it: each card shows the new size next to the old one. Pictures that were already squeezed hard will save little. Resize the photos first if they are much bigger than the space they fill on your page, because that saves more than changing the format. Remember that email programs, printers and some older apps cannot open WebP, so do not replace the JPGs you send to other people.
A tidy habit is to keep two folders, one with the original JPGs and one with the WebP copies you publish. When you change a photo later, edit the JPG and make a fresh WebP from it, instead of converting a WebP back and forth.
Related tools
Questions people ask
Why use WebP?
WebP files are usually smaller than JPG files for the same look, so web pages load faster. That is why many websites use them.
Can every program open WebP?
Modern browsers can. Some older programs, phones and upload forms cannot, so keep your original JPGs as well.
It says my browser cannot make WebP. What now?
Making WebP files needs a browser that supports it. Chrome, Edge and Firefox do. Safari on some Macs does not, and the tool says so instead of giving you the wrong file. Try one of the others.
How much smaller will it be?
It varies by photo. The size shown on each card tells you exactly.
Are my photos uploaded?
No. The conversion happens inside your browser.