imgproxy

imgproxy is a standalone server for resizing, processing, and converting images, built around speed, security, and simplicity. Rather than maintaining image-processing libraries or command-line tools inside a web application, a team points image URLs at imgproxy, which processes and optimizes images on demand - so images don't need to be re-prepared every time a design changes.

The open-source edition supports common formats including JPEG, PNG, GIF, WebP, AVIF, and JPEG XL; a separate commercial imgproxy Pro product adds preview generation for video, PDF, and Photoshop files on top of the same open-source base.

imgproxy is a fit for teams that need on-the-fly image resizing and optimization as infrastructure - in front of a CDN or storage bucket, for example - rather than baking image-processing logic into each application that serves images.