Winff is a frontend for FFMPEG that runs on Windows XP, Linux. It will convert most any video file that FFmpeg will convert. Developed by Matthew Weatherford and Ian Stoffberg
License: Open Source
iWisoft Free Video Converter offers a user-friendly interface with built-in editing tools and support for HD and 4K formats, making it a great choice for users who need more than just conversion. In contrast, WinFF is a lightweight, open-source tool that excels in batch processing and speed but lacks advanced editing capabilities.