Convert y4m to jng

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 jng in the search box.
Press Convert.

What is the difference between .y4m and .jng?

Name: YUV4MPEG2 Video; JPEG Network Graphic
Extension: .y4m; .jng
Format: Binary; Binary
Category: Video; Raster Image
Developer: Mozilla Corporation
Description: Image file format related to the .PNG format, but uses lossy compression like standard .JPG files; developed as a sub-format for .MNG objects, but can also be used as a standalone raster image format.
MIME Type: video/x-yuv4mpeg; image/x-jng
Sample: sample.y4m; sample.jng
Wikipedia: .jng on Wikipedia

Last updated October 3, 2026