Not really both Krita and GIMP works mainly on raster images like Photoshop. Illustator is a vector graphic software. The closest foss relative of which would be Inkscape.
The thing is, Photoshop was born as a photo manipulation tool but the drawing functionality has become an industry standard (I think mostly because they give free licenses to students).
GIMP is a photo manipulation tool and Krita is a digital painting software. They have overlap but neither of them aim at replacing Photoshop as a whole.
GIMP may be the closest match. Krita is more comparable to ClipStudio or Corel painter imo.
Not really both Krita and GIMP works mainly on raster images like Photoshop. Illustator is a vector graphic software. The closest foss relative of which would be Inkscape.
The thing is, Photoshop was born as a photo manipulation tool but the drawing functionality has become an industry standard (I think mostly because they give free licenses to students). GIMP is a photo manipulation tool and Krita is a digital painting software. They have overlap but neither of them aim at replacing Photoshop as a whole. GIMP may be the closest match. Krita is more comparable to ClipStudio or Corel painter imo.