[Freak_NL]

> Gimp is no replacement for Photoshop and Inkscape is not replacement for Illustrator

Nor is Photoshop a replacement for the Gimp, or Illustrator a replacement for Inkscape. They are not cheap clones forever playing catchup to the commercial packages, but mature tools in their own right. Sure, the FOSS tools might miss some of the advanced features the proprietary tools have, but for web development both of them offer plenty of features — and they are free to boot!

Whether or not one can replace the other is mostly a matter of what you are used to. No alternative is going to satisfy you if you've intensively used Photoshop for a decade.

[contingencies]

Definitely. I prefer Illustrator for multi-page documents requiring irritatingly precise typography, and Inkscape for SVGs. Although I pretty much mastered Photoshop perhaps 20 years ago, I've gradually come to loathe it and happily use GIMP or Darktable instead.