1. FX Foundry
FX Foundry is almost certainly the most famous GIMP extension available. There is a very good reason for this: It is a huge mega-pack of more than 100 separate image processing scripts.
2. GAP (GIMP Animation Package)
It’s not as full-featured as an animation suite like Blender, but if you’re looking for two produce some quick,focused animations, it’s perfect.
3. GIMP Paint Studio
GIMP Paint Studio (GPS) is a pack that offers some more brushes, gradients, palettes, patterns, splashes, tool presets, etc.
4. Save for Web
For designing Web
5. GIMP Extensions Pack for Windows
For GIMP running on Windows
Save The Web
Read in RAW Images