Color-by-number pictures are available at Coloring.ws, AllKidsNetwork.com and SuperTeacherWorksheets.com. These can be printed, downloaded or colored using painting software such as MS Paint or Mac's Paintbrush. More color-by-number pictures are available for the PC or mobile devices in the game "Color By Numbers" which can be found at ColorItByNumbers.com
Coloring.ws also features coloring sheets and connect-the-dots puzzles. It features a large collection of downloadable content, including seasonal coloring pages as well as coloring pages in specific categories such as animals, sports and transportation.
The largest library of color-by-number photos is on Pinterest, where users post their own color-by-number pictures that range in difficulty from extremely simple shapes to very complicated designs. Photos from Pinterest can be downloaded or printed on any computer or mobile device.
For a larger, more accessible library of color by number pages, take a look at the coloring game "Color By Numbers," available for PC, Mac, Linux and mobile devices. "Color By Numbers" allows kids to paint any area of a picture with a click of the mouse. They can also change the colors in their design at any time. As of 2015, "Color By Numbers" picture packs cost about $10 each. The game also features online and printable color-by-number pictures.