What cinematic universe includes the characters Woody, Buzz Lightyear and Jessie?

Pixar's Toy Story universe began in 1995 with the first full-length, fully computer-animated film. The saga follows the adventures of toys that come to life when humans are not present, focusing on the relationship between Woody (cowboy) and Buzz Lightyear (astronaut). With four main films and several short films, it is considered one of the most consistent animated franchises in quality.