Gnu IMP

GNU Image Manipulation Program (AKA: GIMP)
Release date:	1996–
Made by:	Open-source
Runs on:	BSD Linux Mac OS Solaris Windows
Imports:	...
Exports:	...

Despite the tacky name, GIMP is a decent image editing program—a free alternative to something like Adobe's PhotoShop (which is awful SAAS now). Another (Windows-only) alternative that's popular is Paint.NET

FYI to break it down fully GIMP stands for GNU's no Uniplexed Information and Computing Service Image Manipulation Program D:

Plug-Ins

Animation

GIMP can already create animated GIFs (each layer becomes a frame), but there are some tools to make the process easier.

GIMP Animation Package

• Using GAP guide.

AnimStack

• animstack on github pages (source not actually on Github?)
• animstack.tumblr.com

Links

• Wikipedia:GIMP
• gimp.org