Image optimizer
Get web-ready images without fiddling with settings. Each image gets the smallest suitable format at a balanced quality, and very large photos are scaled to a sensible size.
Runs in your browser — files are never uploaded
Loading the tool…
How to use Image optimizer
- Drop the images you want to put on your website.
- Keep “Auto”, or limit the dimensions to the width your layout needs.
- Click “Optimise images” and download them one by one or as a ZIP.
Frequently asked questions
What does “Auto” do?
It encodes each image as WebP and as JPG at 80% quality and keeps the smaller file. Images with transparency stay WebP so the transparency is kept.
Are large photos resized?
Photos with a side longer than 2560 pixels are scaled down to 2560 pixels, which is enough for full-screen display. Set your own limit with “Limit dimensions”.
Do all browsers show WebP?
Yes, every current browser supports WebP. If your browser cannot create WebP files, JPG is used instead.