Major League Hacking 2020 Hackathon Season

Not time for round 7.0


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Please observe social distancing and mask wearing! 7.0 is postponed indefinitely until we decide it is safe to hold an in-person event. Join our mailing list to know when release applications.


Are you ready for the world’s largest collegiate hackathon?

No, we don’t hack into databases. In a college context, “hacking” means building something using technology to solve problems.

At Cal Hacks, teams of 4 come together to create something innovative and potentially life changing.

Last fall, the Cal Hacks Foundation organized Cal Hacks 6.0 to bring together 2,200+ attendees 150 universities and 5 countries to build everything from a boba-making machine to mind-controlled vehicles, artificial intelligence for language learning, and a web platform that helps you dance!

For Cal Hacks 7.0, we're building on our tradition of technical & inclusive excellence by bringing together the world's brightest collegiate hackers and guiding them in creating impactful, diverse & innovative projects.

At Cal Hacks, it is a crucial aspect of our mission to embrace and promote inclusivity, accessibility, & ethicality. All participants are expected to respect both our and MLH's Code of Conduct in order to facilitate a positive hackathon experience!

Who comes to Cal Hacks? You.

We invite everyone to join us at Cal Hacks! We value diverse perspectives so we’re calling all hackers, beginners, creators, and leaders. As long as you have an idea, a vision, a problem you want to solve, you should apply!


What is a hackathon?

A hackathon is an event where students create tech projects in a collaborative environment. Students begin with an idea and work towards a complete project over the course of 24-72 hours.

Can I attend without being a hacker?

Yes! We'd love for you to apply to be a volunteer or mentor; we could not make this event happen without our amazing volunteers & mentors.

What if I don't have any coding or hacking experience?

Cal Hacks is the perfect place to learn! We value fresh and diverse minds and invite you to come create with us. We have beginner workshops and mentors to help you build something you can be proud of. No prior experience is necessary!

Cubstart is our pre-hackathon beginniner hacker program! We provide mentorship, team building, and technical workshops for those with little or no CS experience to try out hackathons and coding!

What if I want to work on my hack after the hackathon is over?

We started The Cal Hacks Fellowship, a program that hosts several hackathon teams after the hackathon to continue building their projects to whatever stages they want to take it to next.

How much will this cost?

Cal Hacks is free for all accepted hackers. We will be providing meals, caffeine, workspace, swag, and WiFi for the weekend. All you have to do is come ready to create! Accepted applicants will be notified of reimbursements they qualify for.

Who can attend?

Cal Hacks applications are open to any high school or college (both undergrad and grad) student over the age of 18.

What should I bring?

A valid student or government-issued ID, a laptop, and chargers! If you’d like, bring a change of clothes and a pillow for napping.

What can my team build?

Anything your heart desires! Any hardware, software, or tech-related thing you and your team can come up with! Projects will be judged on creativity, technical difficulty, polish, and usefulness.

How do teams work?

Teams can be up to 4 people large. To apply as part of a team, make sure everyone on your team submits the same exact team name in their application. We’ll also host team matching sessions if you don’t have a team prior!

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