Hacktoberfest is one of the biggest global celebrations of open-source software online, bringing together hundreds of thousands of open-source-loving developers across the world to contribute, connect, and collaborate.
Last year saw nearly 100,000 participants from 150+ countries, and thousands of repositories energized with meaningful—and useful—contributions from users all over the world.
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Let’s build the future of open source, together. Whether you’re launching a developer tool, hiring open-source contributors, or scaling a community, Hacktoberfest gives you a trusted platform to do it in a way that gets users excited.
Help to bring Hacktoberfest 2025 to open-source lovers all over the world! When you become a Hacktoberfest sponsor, you’re helping to secure open source projects now and into the future.
Download the 2025 Sponsor ProspectusGet all the details on packages, audience insights, and opportunities.
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