MediaKit is a privacy-first, browser-based toolkit for modern creators, launching with a powerful image compressor. The core feature is that all processing happens on the client-side, meaning user files are never uploaded to a server. This provides unparalleled privacy and speed. Built with a Next.js frontend, the app offers a seamless, ad-free experience with both light and dark modes. The future roadmap includes video compression, AI-powered enhancements, and a developer API.