Photoshop Alternatives
Photoscape / PhotoscapeX
Browser Based: Photopea and Pixlr E
Color Palettes
colorpod
color blender
Circlejoy's palette generator
paletton
Coolors
pantone palette
Drawing!
kidpix in your browser!
MSpaint in your browser!
Kleki
Shake art!
paintBBS
cinni's oekaki
sudomemo (flipnote hatena 2.0)
Collaborative art board (Magma)
Great Firefox extensions (get firefox!)
colorzilla (eyedropper tool)
tomato clock
dark reader
palettes for tumblr
Don't accept image/webp
save webp as png or jpeg (converter)
search by image
References
Inspiration
@games outfit and item archive
another @games outfit and item archive
Misc.
cute gif animations
give your photos (or drawings!) depth
What I use!
Procreate
Cy's Cyber Brushes
SundSlime's Brushes
Flipnote brushes