Free motion backgrounds are available for download at Videvo.net and VideoBlocks.com. Videvo.net has a collection of motion backgrounds categorized by genre, while VideoBlocks.com has nearly 50,000 royalty-free backgrounds, as of 2015.
Previews of each VideoBlocks.com motion background are available. Users can download backgrounds on the site in MP4 and MOV formats, and the site has a variety of standard definition, high definition and 4K backgrounds. VideoBlocks.com users rate every motion background.
Information is available for Videvo.net motion backgrounds, along with download instructions.
Further free motion backgrounds are available at MotionBackgroundsForFree.com. As with VideoBlocks.com, users rate and review the site's backgrounds.