Hacktoberfest is an annual worldwide event held during the month of October. The event encourages open source developers to contribute to repositories through pull requests (PR). GitHub hosts many open source repositories that contribute to learning content. Some of the repositories actively participate in the Hacktoberfest event. In this article, you’ll learn how to discover which repos are accepting PRs, and what you can expect as a contributor.
To discover if a repo is participating in Hacktoberfest, you'll see the hacktoberfest topic on the project.
To filter all repos that have the hacktoberfest topic, see GitHub Topics: Hacktoberfest.
Alternatively, a repository may choose to use the Hacktoberfest label instead. This label is convenient for filtering issues. For more information, see Filtering issues and pull requests by labels.