HandBrake: Free & open-source video transcoder. Supports MP4, MKV, 4K and lossless audio. Crop pictures, handle subtitles, encrypt DVDs offline.
HandBrake is a powerful, open-source video transcoder that efficiently compresses and converts digital media. It supports various input formats including Blu-ray and DVD files (VIDEO_TS folder, images, or real discs), as well as .VOB, .m2ts, and .TS files, but requires unencrypted or pre-decrypted sources due to its reliance on libavformat and libavcodec. HandBrake outputs in MP4 and MKV formats, utilizing codecs like MPEG-4, H.264, and Theora for video, and AAC, CoreAudio AAC (macOS only), MP3, or Vorbis for audio. Key features include chapter selection, subtitle support, an integrated bitrate calculator, picture deinterlacing, cropping, scaling, and a live preview function.