Stop uploading private assets to shady online converters. DropSlim is a local, privacy-first image optimizer. Everything runs 100% offline with zero server uploads or tracking.It offers a clean desktop GUI for Windows and macOS, plus a scriptable CLI for macOS and Linux (soon). DropSlim supports batch and recursive folder processing for PNG, JPEG, SVG, GIF, WebP, AVIF, and native HEIC on Mac. 100% free and open-source under the MIT license with no accounts needed.