Editing Gifs

[Ninonybox_v1legacy]

What is the best free program to use that you download.
I would like one where you can edit each frame and put other pictures in said frames. and a good quality resisor along with it so resised gifs don't get blocky.

 

[Ninonybox_v1legacy]

*posted for the sake of getting someone to view this*

 

[Mr Montmorency]

Beneton Movie Gif.