TinyFast is described as 'Compress images, videos, and PDFs locally with batch processing, full privacy, quality preservation, and drag-and-drop workflow, all on your Mac' and is a Image Optimizer in the file management category. There are more than 50 alternatives to TinyFast for a variety of platforms, including Windows, Web-based, Mac, Linux and SaaS apps. The best TinyFast alternative is Caesium Image Compressor, which is both free and Open Source. Other great apps like TinyFast are XnConvert, ImageOptim, OptiImage and RasterFox.
TinyFast alternatives are mainly Image Optimizers, but if you're looking for
File Compressors or Image Converters you can filter on that. These are just examples - use the filter bar below to find more specific alternatives to TinyFast.