Imgproxy

imgproxy, developed by Foxes with Matches Inc, is an on-the-fly image processing server that resizes, optimizes, and transforms images dynamically via URL parameters rather than pre-generating every image variant in advance, processing billions of images annually for customers including Medium, Dribbble, eBay, and Photobucket. The open-source version supports JPEG, PNG, GIF, WebP, AVIF, JPEG XL and more, with resizing, cropping, rotating, watermarking, filters, color-profile stripping, metadata removal, PNG quantization, smart cropping, and auto-quality adjustment. A commercial Pro version adds video/PDF/Photoshop previews, object detection, dynamic watermarking, and GIF-to-MP4 conversion, plus security features including image-bomb protection and URL signing. The open-source core is free; Pro costs $49/month or $499/year (with 2 months free annually), available directly or via AWS Marketplace, with a 14-day free trial. Good fit for a developer who wants image resizing and transformation handled dynamically at request time via URL parameters, rather than maintaining a pipeline that pre-generates every image size in advance.