Fandom is a massive collection of wikis, or user-edited websites, dedicated to specific topics. Think of it as a universe of encyclopedias, each one built by fans, for fans. If a movie, TV show, or video game has a dedicated following, it probably has a Fandom wiki documenting every character, location, and plot point in exhaustive detail.

The platform was launched in 2004 by Wikipedia co-founder Jimmy Wales and Angela Beesley Starling. The original idea was to apply Wikipedia's collaborative model to the world of pop culture and entertainment, creating spaces where communities could build the most comprehensive resources possible on their favorite subjects.

Originally called Wikia, the platform quickly grew into a go-to destination for anyone seeking deep knowledge about a piece of media. The name was officially changed to Fandom in 2016 to better reflect its mission. The company was no longer just a wiki host; it was a central hub for fan culture itself.

Today, Fandom hosts hundreds of thousands of individual wikis. It has become an essential part of the online landscape for entertainment, attracting a massive global audience of hundreds of millions of unique monthly visitors. The user base is diverse but tends to be heavily concentrated among dedicated fans of video games, movies, television series, and books.

At its core, Fandom provides the tools and infrastructure for communities to build and maintain these detailed wikis. Anyone can register an account and start contributing, whether by fixing a typo, adding a new piece of information, or creating an entirely new page. The platform is designed for collaboration.

Beyond the basic wiki-editing features, Fandom sites integrate discussions, user blogs, polls, and image galleries. This allows communities to not only build a knowledge base but also to interact with each other directly on the platform. The goal is to be an all-in-one destination for any given fan community.

This structure creates a powerful network effect. As more fans contribute to a wiki, it becomes more valuable and comprehensive, which in turn attracts even more fans. This cycle has allowed Fandom to become the authoritative source for information on countless niche topics, all powered by the passion of its users.