Freemake's Free Video Converter on Windows and Apple's Compressor 4 on Mac OS X systems can convert video downloads to different file formats. Whereas the former is a free application, Apple charges money for Compressor 4.
Free Video Converter supports over 300 multimedia formats. It is also capable of cutting, joining, rotating and cropping videos, as well as adding subtitles. It can utilize Compute Unified Device Architecture and DirectX Video Acceleration for faster conversion and allows users to upload to YouTube for free and make slideshows.
Compressor 4 can be used either as a stand-alone application or as an extension for Final Cut Pro X. In addition to converting videos, it can resize and retime them. The application offers side-by-side previews to compare alterations and has various visual filters and noise-removal capabilities. It requires OS X version 10.10.4 or later.