HandBrake software (version 0.9.3) is a free and open-source video transcoder that is available for Windows, Mac, and Linux. It supports a wide range of input formats and can convert videos into different output formats, including MP4, MKV, and AVI. The software also allows users to adjust various video settings, such as resolution, bitrate, and frame rate, and includes presets for popular devices like iPhones and iPads.