SciZone is described as 'Intelligently engineered media optimization tool designed for speed, quality, and absolute privacy. Unlike traditional online converters that upload your sensitive images to a server, SciZone uses advanced WebAssembly and multi-threading technology to process' and is a Image Optimizer in the photos & graphics category. There are more than 10 alternatives to SciZone, not only websites but also apps for a variety of platforms, including Mac, Windows, Linux and Android apps. The best SciZone alternative is File Converter, which is both free and Open Source. Other great sites and apps similar to SciZone are Caesium Image Compressor, ImageOptim, OptiImage and Squoosh.