Previous hackathon

The event will take place from the evening of Friday, October 22, 2021 through the evening of Sunday, October 24, 2021, so mark your calendars now!

We emphasize that participants can come from ALL backgrounds, majors, and areas of expertise. Your solutions can be completely code-free. As in the past, we welcome students from across the Johns Hopkins network to register. Additionally, we are thrilled to announce that GreenHacks 2021 will be open to students from all Baltimore-area universities for the first time ever! 

You're welcome to participate as an individual or as part of a team! If joining as a team, please form teams prior to the event. Each team member should submit their own registration form.

Your proposed solution to the hackathon track can be completely code-free, like a business proposal, engineering design, new legislative act, a combination of each or something entirely different! We will have keynote speaker Dr. Jessica McCarty, workshops hosted by Homewood Recycling and the Life Design Lab. Aside from all the free swag and food, the top three scoring hackathon teams will earn $500.


Feel free to reach out to us with any questions or concerns regarding registration. We will follow up with a confirmation email soon.


We look forward to seeing you there!