ConvertX

ConvertX is a free, open-source, self-hosted file conversion platform that supports more than 1,000 file formats through a web-based interface. Built with TypeScript, Bun, and Elysia, it allows users to convert documents, images, videos, audio, e-books, archives, and 3D assets. The application integrates established conversion engines, including FFmpeg, ImageMagick, LibreOffice, Pandoc, and Calibre. Users can upload multiple files and process them together instead of converting each one individually. Its account system supports multiple users and password-protected access. ConvertX can be deployed through Docker, making it suitable for home servers and privately managed infrastructure. By hosting the application themselves, users maintain control over uploaded content and conversion workflows without relying on public conversion services.