YOGA Image Optimizer is a free and open source image converter and optimizer application for Windows and Linux. Using this GUI tool you can convert and optimize JPEG, PNG and WebP images easily. It is based on YOGA command-line tool which is using Guetzli for JPEGs, Zopflipng for PNGs and libwebp for WEBPs images. YOGA Image Optimizer is written in python and released under GNU General Public License v3.0. You can save more than 20 to 40 percent in Jpeg and Png images. It comes with Multi-thread support, Custom output and dark mode support.