OngoingOnline · Education · intermediate · chemistry, mass-spectrometry, molecular-structure
This free online competition challenges participants to predict 2-D chemical structures of small molecules using mass spectra data. It is designed for students and researchers interested in chemistry and bioinformatics.
Registration openOnline · Education · intermediate · dsa, competitive-programming, coding
A free online DSA coding competition for Indian college students to test problem-solving and algorithmic skills. Participants individually solve 4 programming problems of varying difficulty within 3 hours.
OngoingOnline · Education · intermediate · hackathon, online-event, free-event
An online hackathon for MCA students to build software projects, hosted on Devpost. The event runs from February to December 2026 and is free to join with no cash prizes.
OngoingOnline · Education · intermediate · binary-classification, machine-learning, healthcare
A free online competition where participants build binary classifiers to distinguish malignant from non-malignant skin lesions using the HAM10000 dataset. The event targets data scientists and healthcare researchers focusing on machine learning and medical imaging.
Hamilton · Education · beginner · hackathon, students, teamwork
DeltaHacks 13 is a free 24-hour hackathon at McMaster University for students to build projects for positive change. Open to all skill levels, it provides workshops, food, and mentorship to help teams or individuals code innovative solutions.
Rochester · Education · hackathon, women-in-tech, software-development
A 24-hour collaborative programming event hosted by RIT's Women in Computing group to foster inclusion for women and gender minorities in tech. Participants of all skill levels build software projects like apps or websites.
OngoingOnline · Education · intermediate · data-science, machine-learning, prediction
A free online data science competition where participants build machine learning models to predict long-term marriage longevity based on birth dates and locations. Targeted at students and professionals skilled in Python and binary classification, the challenge uses a temporal da
OngoingOnline · Education · intermediate · data-science, machine-learning, prediction
A free online data science competition challenging participants to build an astrological model that predicts whether a relationship lasted 30+ years. Using historical Wikidata records of birth dates and locations, competitors must create a genderless, order-agnostic prediction mo
Cincinnati · Education · beginner · hackathon, students, coding
A 24-hour in-person hackathon for students of all majors at the University of Cincinnati. Participants compete in tracks covering coding, business strategy, social impact, and augmented reality to build projects and improve skills.
Urbana · Education · beginner · hackathon, students, coding
A premier student-run hackathon at the University of Illinois where nearly 1,000 participants collaborate for a weekend to build websites, mobile apps, and other innovations. This free event offers substantial prizes and focuses on skill development through teamwork.
Newark · Education · beginner · hackathon, students, teamwork
HenHacks is a beginner-friendly, in-person hackathon for college students of any major at the University of Delaware. Participants will build projects, attend workshops, and network with sponsors over a weekend.
Lawrence · Education · hackathon, mlh, free-event
HackKU27 is a free student hackathon taking place in Lawrence from April 9 to 11, 2027, organized under the Major League Hacking network. Participants will engage in collaborative software development over three days.