Major League Hacking 2021 Hackathon Season
MariHacks bulb logo

24h High School & CEGEP Hackathon (Virtual)

Montreal, QC | February 27-28, 2021

< Register for MariHacks >

Important Note to 2021 Hackers

All participants should have received access to the Discord and DevPost on which the hackathon will take place. If you do not have access to either as of Feb. 27, please reach out to us at

What is MariHacks?

MariHacks is Montreal’s first and largest 24-hour hackathon for CEGEP and High School students. We will bring together over 200 developers and technology enthusiasts to create revolutionary software projects. Meet fellow hackers, learn new technologies, and hone your skills alongside amazing mentors.

Whether you're making your first app or have lots of experience, join us for an amazing day of hacking! We thrives to foster a learning environment and introduce new programmers to hackathons. Apart from creating projects, we love to have fun by singing together, wake up to a yoga session in the morning, and many activities no other hackathons have.



Tech Talks

Fun Activities

Cool Prizes


What is a hackathon?

A hackathon is where you turn your crazy ideas into real stuff. It is an event where beginner and experienced hackers gather together to work on innovative solutions to real-world problems. At MariHacks, you can look forward to amazing guest speakers, helpful workshops, skilled mentors and, of course, awesome hacking!

What if I don't know how to code?

Then you've come to the right place! We will have great workshops for beginners as well as experienced mentors to get your started on your coding journey.

How much does it cost?

Nothing! The entire event is held virtually and all you need to participate is a computer.

Who can apply?

Any High School, CEGEP, and U0 students is eligible to apply!

How many hackers per team?

Teams have a maximum of 4 members. You can select your teammates when you register or you can register individually without specified teammates.

What if I don't have a team?

Don't worry! We will have team formation sessions at the beginning of MariHacks so you can find some teammates!

Where is the location?

The event is held online on our community discord server. The link to the server will be made available closer to the event date to those who register.

When will applications close?

February 26th, 2021 at 11:59pm EDT

I’m interested in volunteering

We always need more hands on deck. Please email us if you are interested in helping out!

I’m interested in mentoring!

If you are an experienced programmer who loves to help others, we’d love to have you. Please fill out The Mentor Registration form. For any questions or concerns, send us an email at

I still have a question...

Please email and we'll be happy to help!


Nervous about the hackathon and don’t know where to start? Check out this hacker booklet we made just for you to get you started!


We are an official MLH Member Event for the 2021 Hackathon Season. Please familiarize yourself with the MLH Code of Conduct if you plan to attend the event.



10:00Opening Ceremony

11:00Team Formation Event

12:00Intro to Web Dev Workshop

13:00Python Workshop with Kurius

13:00Q&A on Open Source Code

15:00Intro to APIs and JavaScript Workshop

16:00MLH Slideshow Karaoke

17:00Hestia Panel on the Future of Education

18:00Fuse 3D Printing Workshop

20:00"Hacking your own Learning" by Raffi Hotter

21:00Inspirit AI Computer Vision Workshop

22:00Mari PogChamps (Chess)


02:00Midnight Ramen

06:00Virtual Minecraft Morning Yoga

09:00Machine Learning Workshop

11:00Hestia Workshop "From Hackathon to Product"

13:00Project Submission Deadline

13:30Q&A with the Canadian Space Agency

14:00MLH !Light

15:00Closing Ceremony

Our Sponsors

Marianopolis College Metro Wolfram Language
Balsamiq Fuse Université de Montréal echoAR Codex InspiritAI MSU

Our Partners

BrebeufHx StickerMule Kurius