Image sequence import

Hi,
I've just finished rendering a 10 second animation in Daz Studio 4.9 (my first) on a Mac. All went well and I have a sequence of 250 png files. Does anybody know of any (free) way to import the image sequence and export them as a mov file?
Thanks for any help,
Dale
Apologies for posting, have solved with DaVinci Resolve.
Post edited by Earth Balm on