This blog post explains some details behind this site. Inspired by jpgtoheif.com.

Uploaded images will be deleted regulary. All quality fields can take a value between 1 - 100, but they do not mean the same thing.

Use your own image:

Upload an image:		Upload
Existing rokka hash:		Use

Output settings:

JPEG quality:
WebP quality:
AVIF quality:
JPEG XL quality:
HEIF quality:
Image width (max 1200):	Render

Rendered Images:

JPEG

Filesize: Error loading image

URL: https://compare.rokka.io/optim/resize-width-800--options-jpg.quality-80/d68ef212f18f8f20130a38f31ca5e945e93446a9.jpg

WebP

Filesize: Error loading image

URL: https://compare.rokka.io/optim/resize-width-800--options-webp.quality-80/d68ef212f18f8f20130a38f31ca5e945e93446a9.webp

AVIF

Filesize: Error loading image

URL: https://compare.rokka.io/optim/resize-width-800--options-avif.quality-40/d68ef212f18f8f20130a38f31ca5e945e93446a9.avif

JPEG XL

Filesize: Error loading image Needs a browser with JXL support

URL: https://compare.rokka.io/optim/resize-width-800--options-jxl.quality-65/d68ef212f18f8f20130a38f31ca5e945e93446a9.jxl

HEIF

Filesize: Loading ...

URL: https://compare.rokka.iohttps://compare.rokka.io/optim/resize-width-800--options-heif.quality-40/d68ef212f18f8f20130a38f31ca5e945e93446a9.heif