Convert y4m to mjpg

Download and install the latest version of Filestar.
Right click on one or more Y4m file(s) on your desktop and select Convert with Filestar.
Type convert to mjpg in the search box.
Press Convert.

What is the difference between .y4m and .mjpg?

Name: YUV4MPEG2 Video; Motion JPEG
Extension: .y4m; .mjpg
Format: Binary; Binary
Category: Video; Video
Developer: Motion JPEG Group
Description: It is a Motion JPEG that captures sequence images in a multimedia format — commonly used on digital cameras and webcams. It is a large file size that can be easily edited because of its low compression levels.
MIME Type: video/x-yuv4mpeg; video/x-motion-jpeg
Sample: sample.y4m
Wikipedia: .mjpg on Wikipedia

Last updated October 3, 2026