BrainPOP Jr. hosts animated educational content intended for students in kindergarten to third grade. As of May 2015, the site has animated videos, Flash games and interactive lessons.
The site has segments for science, reading and writing, math, social studies, and health. There is also a general arts and technology segment that mixes animated biographies of famous artists and inventors with basic engineering, music and photography lessons. The site also has resources for educators, such as lesson plans, training materials and activity suggestions based on regional educational standards. The site is free to use and accessible with a Web browser.