Hacktoberfest is an annual, month-long celebration of open-source software, held in October. Organized by DigitalOcean, in partnership with GitHub and other companies, it encourages developers of all skill levels to contribute to open-source projects. Participants can contribute code, documentation, or bug fixes to repositories on GitHub or GitLab. The event promotes learning, collaboration, and community building, offering exclusive rewards like digital badges to participants who complete four or more pull requests. Hacktoberfest is a fantastic opportunity to dive into open-source, enhance your coding skills, and make a positive impact on the global developer community!