Build
Create an app, game, website, tool, or any other project you want to bring to life
Online student hackathon / December 19 and 20, 2026
Cosmo Hacks
2026
2026 Theme / Build Beyond
Cosmo Hacks is a free two day online hackathon for high school students. Build a project, join workshops, and submit your work to judges.
02days online
13 to 18student ages
1 to 4builders per team
03confirmed workshops
03confirmed judges
12sponsors
01 / ABOUT
About
This year’s theme is Build Beyond. Build any project you care about.
Build Beyond
Build Beyond is open ended. Join solo or with up to three teammates and build any project you want.
ORGANIZER
LEAD ORGANIZER
Pranav Sirur
Cosmo Hacks is organized by Pranav Sirur to give high school students a place to build, learn, and meet other students.
Learn
Join workshops, ask questions, and get support from mentors and other students throughout the event
Launch
Submit a public GitHub repository and a short demo video that clearly shows what you built
02 / SPONSORS
Sponsors
$100K+ in confirmed sponsor benefits, including prizes, credits, workshops, memberships, and other support for Cosmo Hacks.
Featured cash sponsor↗
ONLYOFFICE cash prizes
ONLYOFFICE is providing $150+ in cash prizes for winning teams at Cosmo Hacks 2026
Their platform helps teams work with docs, slides, sheets, PDFs, and team collaboration
$150+ cashWinning teamsFeatured sponsor
Sponsor↗
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Tin Computer credits
$299 Growth credit for up to 100 teams to keep building after the event
Claim details will be shared before the eventSponsor↗
Free .xyz domains
150 free one year .xyz domains for participants
Claim details will be shared before the eventSponsor↗
Momen credits and workshop
$100 in credits per participant plus $2,000 for the winning project
Workshop plus founder and CEO as judge and mentorSponsor↗
ProtoFlow credits and workshop
$25 in credits per participant plus extra credits for the top three teams
Workshop: AI powered PCB designSponsor↗
DevSwarm Pro access
One month of Pro for participants and organizers, plus one year for winning teams
Redemption details will be shared before the eventSponsor↗
Mobbin Pro access
Three months of Pro for participants and one year for winning teams
Product and design inspiration for buildersSponsor↗
CodeCrafters VIP memberships
VIP memberships for winning teams with longer access for higher placements
Three month VIP access for up to five organizersSponsor↗
Rise Research scholarships and judges
Scholarships for participants and finalists with larger awards for top teams
Two judges plus certificates signed by the foundersSponsor↗
Formaloo credits and workshop
$500 in credits for each of the top three teams
Formaloo’s CEO will also host a workshopSponsor↗
n8n Cloud Pro licenses
150 one month Cloud Pro licenses for participants
Workflow automation for apps, APIs, and AI toolsSponsor↗
Firecrawl support
Credits and tools for projects that work with web data
Web data infrastructure for AI apps and agentsSponsor↗
Pyxel Edit licenses
12 Pyxel Edit licenses for the top three teams, with up to four students per team
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BECOME A SPONSOR
Support Cosmo Hacks
We are looking for sponsors for prizes, workshops, mentors, software credits, and other student resources.
Partner with us ↗03 / SCHEDULE
Schedule
Here is the current schedule. All times are CST.
DAY 01
Build
Meet other participants and start building your project.
Opening Ceremony
Open Workshop Slot: Email us at cosmohacks2026@gmail.com
Formaloo Workshop
Momen Workshop
ProtoFlow Workshop
DAY 02
Finish
Finish your project, record your demo, and submit before the deadline.
Open Workshop Slot: Email us at cosmohacks2026@gmail.com
Open Workshop Slot: Email us at cosmohacks2026@gmail.com
Submission Deadline
Closing Ceremony and Winners
Workshops are 30 to 45 minutes long.
04 / JUDGING
Judging
Projects are judged on five areas: idea, functionality, presentation, effort, and workshop participation.
01Creativity
Is the idea thoughtful, original, or a strong take on a real problem?
02Functionality
Does the project work well and deliver what the team says it does?
03Presentation
Can the team clearly explain the idea, the build process, and how to use the project?
04Effort
Does the submission show strong execution, care, and meaningful work from the team?
05Workshop participation
The number of workshops your team attends is an important part of judging because it shows engagement and willingness to learn
05 / PRIZES
Prizes
CURRENTLY CONFIRMED
$150+ cash prizes
Cash prizes are confirmed. The final split will be announced closer to the event.
SPONSOR BENEFITS
Over $100K in builder benefits
Access credits, APIs, software tools, memberships, domains, and more from our confirmed sponsors.
MORE COMING
Prize lineup in progress
More prizes will be added as they are confirmed.
06 / RULES
Rules
Review the event rules and submission requirements before the hackathon.
01
High school only
Cosmo Hacks is open to students ages 13 to 18 in grades 9 through 12
02
Teams of up to four
Join solo or compete with up to three additional teammates
03
Public GitHub required
Each submission must include a public GitHub repository with the project code
04
Short demo video
Submit a two to three minute demo that explains the idea, how it was built, and how it works
05
AI is allowed
Teams may use AI tools, but they should understand their work and be able to explain how AI was used
06
Show your work
Projects should clearly reflect your team’s work and effort during the event
07 / JUDGES
Judges
Meet the confirmed judges for Cosmo Hacks 2026.
01RISE RESEARCH
Yash Mundada
Co Founder of Rise Research
Confirmed judge for Cosmo Hacks 202602RISE RESEARCH
Shreyans Lodha
Co Founder of Rise Research
Confirmed judge for Cosmo Hacks 202603MOMEN
Yaokai Jiang
Founder and CEO of Momen
Confirmed judge and mentor for Cosmo Hacks 202608 / FAQ
FAQ
Do I need to be an experienced coder?
No. Beginners are welcome. Workshops, mentors, and community support will be available throughout the event.
Can I choose any topic?
Yes. Build Beyond is a broad theme, so you can build an app, website, game, tool, experiment, or another project that takes an idea further
What do I submit?
Submit a public GitHub repository and a short demo video that explains what your project does and how it works.
Can I use AI tools?
Yes. AI tools are allowed, but you should understand your project and be able to explain how you used them.
How do I find teammates?
You can compete solo or find teammates in the Cosmo Hacks Discord. Teams can include up to four students
Where does the event happen?
Cosmo Hacks is fully online. We will use Discord for community and announcements, along with online sessions for key event activities.