MEncoder is a free command line transcoding tool released under the GNU General Public License.
License: Open Source
iWisoft Free Video Converter is a user-friendly application ideal for beginners, focusing on ease of use and basic video conversion features, while MEncoder offers a more powerful, command-line-based solution suitable for advanced users and supports a broader range of advanced features. MEncoder's cross-platform nature and support for 4K resolution make it a preferable choice for users requiring more control and flexibility.