Optimize your images with blazing speed · Kraken.io Free StuffDeysonSeptember 3, 2013September 3, 2013 Free web optimization for web images. I thought this was a handy dandy little tool for anyone that needs to make their image file sizes smaller for their websites. They have a FREE web interface option for you to use. You know I love free! 🙂 Web Interface · Kraken.io.