tiny.photos is described as 'Process images in bulk securely in your browser, no uploading necessary. It's private, fast, and easy! Upload all major image formats, resize, crop, compress, and convert images all at once' and is a Image Optimizer in the photos & graphics category. There are more than 10 alternatives to tiny.photos, not only websites but also apps for a variety of platforms, including Mac, Windows, Linux and GIMP apps. The best tiny.photos alternative is Caesium Image Compressor, which is both free and Open Source. Other great sites and apps similar to tiny.photos are XnConvert, ImageOptim, Squoosh and RIOT - Radical Image Optimization Tool.