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:

URL:

WebP

Filesize:

URL:

AVIF

Filesize:

URL:

JPEG XL

Filesize:

URL:

HEIF

Filesize:

URL: