Quick-O is a tool for converting images and extracting frames from movies. The unregistered version is fully functional but will only convert/export one image/movie frame at a time.
v1.2 - Universal binary; fixed a problem with long filenames.
Transcode images in a wide range of formats.
XnConvert is a feature-rich image editor and converter for Mac.
Xsend Motion converts your FCPX timeline into a Motion project in just seconds.