48 hours of programming, designing, networking, and learning! GryphHacks is the University of Guelph's official, student-run Hackathon! We welcome hackers of all skills and backgrounds from around the world, above the age of 14! This is a virtual event!

From May 20-22, attend workshops and learn from industry professionals, amongst networking events, seminars, and mini-games with prizes & giveaways all throughout the weekend

Join solo, or grab some friends to create a team of up to 4 people to submit your prototype that falls under one of our many categories! Applications are now officially closed, keep an eye on our socials for more information and sneak peaks of what's to come this amazing weekend at https://linktr.ee/gryphhacks!



Registration Opens April 9th
Registration Closes May 10th (Now May 16th!)
Opening Ceremony May 20th @ 5:00PM
Hacking Starts May 20th @ 5:30PM
Hacking Ends May 22nd @ 5:30PM
Judging Begins May 23nd @ 9:00PM
Public Voting Begins May 23nd @ 9:00PM
Public Voting Ends May 28th @ 11:59pm
Judging Ends May 29nd @ 12:00PM
Closing Ceremony (Winners Announced) May 29nd @ 2:00PM

**All times listed are in EDT. This schedule is estimated and is subject to change.


Only participants who have registered through the application found on the GryphHacks website are permitted to submit their projects through Devpost. Any other submissions will not be judged.

We follow MLH Contest Rules as well as our own. As such, the contest is open to any students, with any single team consisting of 1 to 4 individuals. Students must currently be attending either high school or university, as well as at least 14 years of age.

Cross-submissions of the same project to different hackathons running simultaneously as GryphHacks are not permitted and will result in immediate disqualification from GryphHacks.

All code written must be your own and written before project submissions end. All code and supplementary materials MUST not have been designed ahead of the hackathon period. Please ensure your submission includes a link to your github repo (must be public) and a complete devpost description.

It is REQUIRED to have a 1 - 3 minute video showcasing your project in your Devpost submission. This may be especially useful for the "People's Choice" category prize when other teams are checking out your project, as well as ensures that your project is properly showcased during judging.

Project submissions end Sunday, May 22nd at 5:30 PM EDT

Hackathon Sponsors


$CAD12,972 in prizes

First Place Overall

This is a project that is deemed best overall by our judges!
Each member of the first-place team will receive a GryphHacks x MLH Hoodie (Select Sizes Available), and a Samsung 27 inch Monitor! Each member will also receive $250 worth of credits for Digital Ocean!

Second Place Overall

Second place is a project that is deemed second-best overall by our judges. Each member of the winning team will receive a Nintendo Switch Lite! They will also receive $125 worth of Digital Ocean Credits!

Third Place Overall

Third place is a project that is deemed third-best overall by our judges. Each member of the winning team will receive Beats Studio Buds, and $100 worth of Digital Ocean Credits!

People's Choice

This is the project that is most popular amongst hackers, and places first during the public voting period between 6 pm and 9 pm on Sunday May 22nd. Each member of the winning team will receive a $50 cash prize!

Best UI/UX Hack

Each member of the winning team will receive, an XP pen tablet and a Gaming Keyboard!

Best Discord Bot

Each member of the winning team will receive 1 year of Discord Nitro Classic!

Best Hardware Hack

Each member of the winning team will receive an Amazon Echo!

Best CI/CD Application Using CircleCI

Have you ever wondered how professional developers from companies like Peloton & Samsung collaborate and ship code to production? For one, they use continuous integration and delivery (CI/CD) platforms like CircleCI to help automate testing, versioning, deployment and so much more. Whether you’re looking to learn a new skill, practice coding, or hack with friends, CircleCI can help you to utilize the best development practices possible when approaching a new project, however big or small. Use CircleCI in your next hack for a chance to win some awesome CircleCI swag, including a branded mug, beanie, socks and stickers!

Best use of CockroachDB

Build your hackathon project on CockroachDB's open source and indestructible SQL database. Utilize CockroachDB in your hack for a chance to win a 3D printing pen for each team member. What's more, All US residents that submit CockroachDB enabled projects will receive a free t-shirt while supplies last!

Best Use of DeSo

DeSo is the official Web3 sponsor of the MLH Hackathon League and the first Layer 1 blockchain custom-built for decentralized social media applications. While blockchains like Avalanche or Solana cost $0.50+ to store just a 200-character post, the DeSo blockchain is built with custom indexing and storage optimizations which make it 10,000X cheaper to store social content on-chain! In order to qualify for the contest, you must launch an app that writes to the DeSo blockchain and/or implements DeSo identity. While social media apps are a great fit for DeSo, you can also build financial apps, marketplaces, and more on the DeSo blockchain. For inspiration on project ideas, you can check out some of the existing 200+ apps already live on DeSo at Bithunt.com as well as our DeSo APIs. The Best Use of DeSo gets $100 worth of $DESO coin & an exclusive DeSo branded tumbler!

Best Domain Name from Domain.com

Register a .tech domain name using Domain.com during the weekend. Each team may submit one entry per person on the team. Each winning team member will receive a PowerSquare Qi wireless phone charger.

Best Use of Google Cloud

Build your hackathon project with a suite of secure storage, powerful compute, and integrated data analytics products provided by Google Cloud. See full list of products here: g.co/cloud. Each winning team member located in the US will receive a Google Cloud Swag Bag complete with a beanie, pillow, journal, socks and lanyards. International winners will receive a Google branded backpack.

Best Use of MATLAB

MATLAB and Simulink are computation tools used at more than 5,000 institutions worldwide. Use their software in your next hack to win some exclusive MathWorks swag including a MathWorks branded cinch bag, pair of socks, baseball cap, stylus pen & deck of cards! You can also claim a free MATLAB software license to get started.

Most Creative Use of Twilio

Twilio allows you to incorporate mobile messaging, phone calls and a ton of other awesome communication features right into your hackathon project using web service APIs. Are you building an e-commerce website and want to send text notifications or email confirmations once an order is completed? Or maybe your application needs to verify users based on their mobile numbers? Twilio makes all this possible and more. Build a hack that simplifies your life using any one of Twilio’s APIs for a chance to win a Twilio Swag Box and GameGo Console for you and each of your teammates!

Devpost Achievements

Submitting to this hackathon could earn you:


Stacey Scott

Stacey Scott
Professor @ University of Guelph

Deb Stacey

Deb Stacey
Professor @ University of Guelph

Hashu Gill

Hashu Gill
Software Development Manager @ Amazon

 Fawziyah Alebiosu

Fawziyah Alebiosu
MLH Coach

Olivia Li

Olivia Li
Software Scientific Technician @ Wefunder

Nicholas Wong

Nicholas Wong
Software Engineer @ WeFunder

Femi Ajayi

Femi Ajayi
Head of Engineering @ Roomiez

Judging Criteria

  • Innovation
    Does it answer a question? Does it solve a real-world problem?
  • Presentation & Design
    Based off the devpost submission. How appealing does your design look?
  • Usability
    Is it easy to manage/use for users? Does it have a neat and clean design?
  • Sustainability
    Is this project scalable and maintainable for the future?
  • Technical Difficulty
    How technically sophisticated was the solution?
  • Accessibility
    What about your project is accessible?

Questions? Email the hackathon manager

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Hackathon sponsors

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