Contao - tiny-compress-images
Speed up your website. Optimize your JPEG and PNG images automatically with TinyPNG.
This plugin automatically optimizes your images by integrating with the popular image compression services TinyJPG and TinyPNG.
Install this plugin and obtain your free API key from https://tinypng.com/developers. The first 500 compressions per month are completely free.
Put the API key to your Contao settings.