Web assets

Website asset preparation

Prepare images for web pages and CMS uploads: modern formats, sensible dimensions and smaller files.

Before you start

The biggest saving on most web images is size, not format. A browser that shows a 2000-pixel photo in a 400-pixel space still downloads all 2000 pixels, so resize to the largest size the image is actually shown at, then convert to WebP and compress. Keep the full-size original for next time.

Read the guide: Best formats for web images

Start here

Popular tools for this

Open a tool and process your file directly. Files are processed in your browser.

PNG to WebP JPG to WebP Compress image Favicon generator ZIP for website upload

Available actions

Resize images to the size they are displayed at
Convert JPG and PNG to WebP
Compress images for faster pages
Create a favicon from an image
Remove location and camera details before publishing
Package site files as a ZIP for upload

Supported formats

JPGPNGWEBPSVG

These are the formats the tools on this page accept today. If yours is not listed, the supported formats page lists everything FormatOS reads.

Common uses

Shrink a blog header image
Serve a product photo as WebP
Make a favicon from your logo

Limitations

Compressed web copies cannot be restored to the original quality, so keep your originals.
SVG files are drawn as pictures; any scripts inside them are never run.
The right dimensions depend on your layout, so check the image on the real page.