A BIK2 file is a video file that contains data compressed with the Bink 2 video and audio codecs. It is used to store movie clips in video games on both PCs and console systems. BIK2 files are more commonly saved as .BK2 files.

The Bink Video 2 format is developed by RAD Game Tools and was released in 2013, replacing the original Bink (.BIK) proprietary format. The format provides substantially better performance than the Bink format while maintaining high video quality. NOTE: Bink Video 2 is available for the Windows, macOS, and Linux, Android, and iOS platforms. It is also available for Xbox One, Xbox 360, Sony PS4, Sony PS3, Sony PSVita, Nintendo Switch, Nintendo Wii, and Nintendo WiiU.