Free MKV to MP4 Converter

Version 1.2 of the program is probably the last version running on Windows XP. Compatibility with Windows XP blocks access to many technologies, audio and video encoders, and FFmpeg functionalities available only for Windows Vista and newer.

Free MKV to MP4 Converter is a free program that allows you to convert Matroska video files (MKV) to MP4 format.

MP4 files created by the program can be played on many portable devices (iPhone, iPod, Samsung Galaxy, Microsoft Surface, HTC, PSP) and fixed media players (WD TV, Xtreamer, Asus O!Play). For encoding video streams, the program can use H.264/AVC, H.265/HEVC, or Xvid video encoder. For encoding audio streams program uses AAC (Advanced Audio Coding) or MP3 (Lame) audio encoder.

The program has a number of predefined settings (profiles) specially designed for novice users. More advanced users can customize video and audio encoding parameters used by encoder: audio and video codec, audio and video bitrate, aspect ratio, frames per second, resolution, color conversion to grayscale or sepia, change contrast and brightness, audio sampling frequency, volume and other.

Basic operation of the program is very simple: just drag & drop MKV files into main window and click Convert button on the toolbar.

At default settings, the application converts files using H.264 video encoder and AAC audio encoder, and automatically selects all the encoding parameters so as to preserve the original video and audio quality.
Created MP4 files will be compatible with HTML5 standard, so you can use it on your website.

The program is available in both 32 bit and 64 bit version. The conversion process of the 64-bit version is faster by a few to 50% (depending on the selected video encoder).

• Converting Matroska video files (MKV) to MP4.
• Supported video encoders: H.264/MPEG-4 AVC (Advanced Video Coding), H.265/HEVC (High Efficiency Video Coding), Xvid.
• Supported audio encoders: AAC (Advanced Audio Coding), MP3 (Lame).
• Compatibility with the HTML5 Video specification using the H.264 and AAC encoders.
• Support for multithreaded encoding using the H.264 and H.265 video encoder.
• Displaying a detailed technical information about the source files in the File properties window.
• Fully configurable file list (table) displays a lot of useful information: video and audio codec, video and audio bitrate, duration, resolution, display aspect ratio, number of audio channels, and many more.
• The ability to convert any audio stream from a video file with multiple audio tracks.
• A number of predefined conversion profiles. Possibility to save your own settings to an INI file.
• A large number of encoding parameters: audio and video bitrate, display aspect ratio, frames per second (fps), number of encoding threads, x264 profile, number of audio channels, audio sampling, volume, changing the resolution, scaling and cropping the image, color conversion to grayscale or sepia, brightness, saturation, horizontal & vertical flip, rotation, deinterlacing, and other.
• Possibility of 2-pass encoding.
• The ability to save encoder commands in a BAT file.
• The program is portable: it does not use system registry and all settings are stored in INI files. Thanks to this program can be run from portable devices such as pendrives, removable drives.
• The program has a built-in support for multiple languages. Current version supports Czech, English, French, German, Greek, Hungarian, Italian, Japanese, Latvian, Polish, Portuguese (BR), Russian, Serbian, Spanish, Swedish, Turkish.
• 100% freeware! – for private and commercial use. The program does not require registration, there is no built-in limitations, does not add to the generated files “watermarks”, etc.