Most coloring pages aimed at toddlers are still too detailed for them. The ones collected here are the opposite: every page has thick outlines and a small number of large areas, which is what a two- or three-year-old can actually fill.
What makes a page easy
Three things. Thick lines, so the boundary is obvious. Few separate regions, so the page is finished before attention runs out. And a recognisable subject, because a toddler colours a cat with more enthusiasm than an abstract shape.
Crayons over felt tips
Chunky crayons suit this age better than felt tips. They need less pressure control, they do not bleed through the paper, and a toddler holding one in a fist still gets colour on the page.
Do not worry about the lines
Colouring outside the lines is not a mistake to correct at this age, it is the normal stage before fine motor control arrives. The value is in the grip, the wrist movement and the naming, not in a tidy result.