Compress JPG is described as 'JPEG, PNG, WebP, GIF, AVIF, JXL, and QOI formats online for free. No sign-up needed. Secure in-browser compression handles up to 1000 files simultaneously. Your files never leave your device, ensuring complete privacy' and is an website. There are more than 25 alternatives to Compress JPG, not only websites but also apps for a variety of platforms, including Windows, Mac, Wordpress and SaaS apps. The best Compress JPG alternative is Caesium Image Compressor, which is both free and Open Source. Other great sites and apps similar to Compress JPG are ImageOptim, TinyPNG, FFShare and Image Tuner.