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Welcome to OCSEFHacks!
We are a hackathon hosted by high schoolers in Southern California, USA, partnered with the Orange County Science and Engineering Fair.
OCSEFHacks 1 was hosted on April 26-27th, 2025 & OCSEFHacks 2 was hosted on April 18-19th, 2026
OCSEFHacks 3 is on November 14-15th, 2026 @ Westminster High School
CLICK HERE TO REGISTER

This hackathon is a separate event from the Orange County Science and Engineering Fair (OCSEF). All funds go directly towards the hackathon, not to OCSEF.