Fileboy is small on purpose. Each comparison says where it fits and where another option is the better call.
Fileboy handles uploads, resized images and video for your app at a flat monthly price. Cloudinary is a full media platform. This page is about which one you actually need.
Uploadcare and Fileboy solve the same core problem. Here is an even-handed look at where they differ, including where Uploadcare is the better pick.
imgix is an excellent image processing layer that sits in front of storage you already run. Fileboy is a smaller, all-in-one service. They are not quite the same kind of product.
Presigned URLs, an image resizing Lambda and a CDN will get you there. Fileboy is what that project becomes when someone has already finished and maintained it.
Fileboy uploads, encodes and streams on-demand video, and also handles your images and files, for a flat price per app. Mux is a dedicated video platform. This page is about which one you need.
Fileboy streams on-demand video and handles uploads and resized images in the same service, for a flat price per app. Cloudflare Stream is a video product on a large network. This page is about which one you need.