D&D Beyond is an "official digital toolset and game companion for Dungeons & Dragons fifth edition." It's a gathering place that includes "digital tools like a character builder and digital character sheet, monster and spell listings that can be sorted and filtered, an encounter builder, and an interactive overlay Twitch Extension. In addition to official D&D content, it also provides the ability to create and add custom homebrew content. D&D Beyond also publishes regular original video, stream, and article content, including interviews with Dungeons & Dragons staff, content previews and tie-ins, and weekly development updates." On top of that, it has a forum where players and dungeon masters (DMs) alike can discuss new updates, pose questions about rules, character ideas, and/or homebrew content, and just generally connect over a game that has roots going back to the 1970s.
Dungeons & Dragons is considered, traditionally, to be a pen(cil) and paper tabletop roleplaying game. This means players have a lot of rules (and math) to remember while playing, which can be overwhelming to new and old players alike. Tools like D&D Beyond help make the game more interactive and beginner-friendly, which allows the playerbase to continue to grow.
Through this project, I hope to show how important and effective it is to incorporate new, interactive technology into what is viewed, generally, as a hobby done only with pencils, paper, some dice, and a lot of imagination.