mask mask (maskmaskzhang)

China

ChilangoHacks

Ciudad de México, Mexico

ChilangoHacks is the first student hackathon in Mexico City, where developers, designers, and entrepreneurs come together to build innovative solutions.

Non-monetary prizes
Oct 31 – Nov 1, 2025
14 participants

Techs Sparking Challenge

Online

Make solutions from any tech stack

Non-monetary prizes
Winners announced
178 participants

Horror Hacks

Online

A beginner friendly hackathon centered all about Halloween!

$300 in prizes
Winners announced
327 participants

Google Chrome Built-in AI Challenge 2025

Online

Innovate with Intelligence: Build the Future of the Web with Gemini Nano and Chrome AI.

$70,000 in prizes
Winners announced
14078 participants

BUILD Halloween Hacks

Online

Join the BUILD Halloween Hacks this October 1-October 31, 2025 for a spooky community hackathon!

$9,717 in prizes
Winners announced
228 participants

Maximally Hacktober: A Month-Long Hackathon for the Builders Who Won’t Quit

Online

31 days. One idea. Build slow, build loud, finish strong.

₹ 169,000 in prizes
Winners announced
262 participants

Reddit and Kiro: Community Games Challenge

Online

Reddit and Kiro are hosting a virtual hackathon for the best community game!

$45,000 in prizes
Winners announced
1929 participants

Global Innovation Challenge in Low-Cost Prosthetics 2025

Online

prosthetics-challenge-2025.devpost.com

$400 in prizes
Winners announced
55 participants

TrackShift Innovation Challenge

Sahibzada Ajit Singh Nagar, India

Where Ideas Pit Stop and Innovations Refuel

₹ 175,000 in prizes
Oct 9 – 30, 2025
1824 participants

Solstice

SRM Nagar, India

From one idea to multiverse of innovation...

₹ 6,000 in prizes
Oct 7 – 29, 2025
81 participants

Azure AI Codeathon

Online

Build smarter. Innovate faster. Shape the future with Azure AI.

Non-monetary prizes
Winners announced
31 participants

Interledger Hackathon 2025

Ciudad de México, Mexico

Join us for our annual 24-hour Interledger Hackathon! Dive into the world of Open Payments and develop innovative solutions using the Interledger Open Payments API.

$15,000 in prizes
Oct 7 – 27, 2025
10 participants

Spookathon 2025

Costa Mesa, CA, USA

A Halloween-inspired hackathon hosted by the Iota Xi Honor Society at Orange Coast College.

$1,000 in prizes
Oct 24 – 26, 2025
91 participants

AI Innovation Challenge

Online

Innovate AI Ideas

Non-monetary prizes
Winners announced
76 participants

Girls Hoo Hack 2025

Charlottesville, VA, USA

Girls Hoo Hack is a gender-inclusive, women-centered hackathon that is focused on promoting innovation while celebrating diversity.

$500 in prizes
Oct 25 – 26, 2025
124 participants

HackMty 2025

Monterrey, Mexico

Latin America’s biggest student-hackathon, where ideas spark, teams collide, impact ignites.

Non-monetary prizes
Oct 24 – 26, 2025
821 participants

WashU Hackathon 2025 - Brought to you by Hack WashU x Skandalaris x Mayfield

St. Louis, MO, USA

Bringing WashU's most creative minds together to build solutions that matter

$6,750 in prizes
Oct 24 – 26, 2025
60 participants

CBIT HACKTOBERFEST HACKATHON 2025

Online

learn, code, share!

Non-monetary prizes
Winners announced
34 participants

Eurekathon 2025 - Low/No Code & Prizes for all participants

Online

A 5-week global innovation challenge blending science fairs and hackathons. Research or code your way to innovation across multiple STEM tracks! Code, research and win prizes!

$35,774 in prizes
Winners announced
237 participants

Awesome presentations

Online

Create presentations from documents in seconds

Non-monetary prizes
Winners announced
40 participants

Maximally PromptStorm

Online

24 hours to bend AI with pure prompts. Chaos, speed, and creativity collide.

₹ 169,000 in prizes
Winners announced
198 participants

AI Accelerate: Unlocking New Frontiers

Online

Unlocking New Frontiers: A Multi-Partner Google Cloud Hackathon

$50,000 in prizes
Winners announced
2734 participants

MkSU Hackfest 2025 (3rd Edition)

Machakos, Kenya

Join 100+ hackers this October at MksU Hackfest 25! Build, learn, and connect through workshops, fun activities, and networking with top tech companies.

Non-monetary prizes
Oct 24, 2025
68 participants

SRHR Tech Innovation: Inclusive SRHR Access for Adolescents & Youth in Liberia

Online

Innovating for Change: Youth-Led Tech Solutions for Inclusive Access to SRHR by Adolescents and Youth in Liberia

$1,050 in prizes
Winners announced
77 participants