Lossy compression: lossy has a better compression rate than lossless compression.
The resulting image is identical with the original to the human eye. You can run a test for free here.
Glossy compression: glossy has a better compression rate than lossless compression but less than lossy.
The resulting image is identical with the original to the human eye even in large resolutions. Ideal for photographers.
Lossless compression: the shrunk image will be identical with the original and smaller in size.
In some rare cases you will need to use this type of compression. Some technical drawings or images from vector graphics are possible situations.
Images for the web only need RGB format and converting them from CMYK to RGB makes them smaller.
EXIF is a set of various pieces of information that are automatically embedded into the image upon creation. This can include GPS position, camera manufacturer, date and time, etc. Unless you really need that data to be preserved, we recommend removing it as it can lead to better compression rates.
Recommended for large photos, like the ones taken with your phone. Saved space can go up to 80% or more after resizing.
WebP images can be up to three times smaller than PNGs and 25% smaller than JPGs. Choosing this option does not use up additional credits.
Input a list of folder names that you want to exclude from the optimization, coma separated, without quotes or other delimiters. For example, mybackups,deleted-images,old .
Save a backup copy of the images in this folder. You can choose the same folder, in this case a subfolder named ShortPixelBackups will automatically be created inside it, for the saved backups, and this folder will be ignored when optimizing.