Physics + Programming
Simulate projectile motion with air drag in Python
Plot real trajectories with air resistance and compare them with the textbook parabola.
- Intermediate
- 1–2 weeks
- Free
606 projects · 13 streams · every class
Hackathon Projects 102
Problems you can scope to 24 hours, 48 hours or a week, each with a small first version and stretch goals.
102 projects
Programming · Python
Build a number guessing game in Python
Write a game where the computer picks a number and tells the player "higher" or "lower".
- Beginner
- 1–3 hours
- Free
Public Policy and Governance + Software Development
Build a civic-tech prototype to report local problems
Build a site where residents mark potholes or broken lights on a map and track their status.
- Intermediate
- 2–4 weeks
- Free
Pure Mathematics + Cybersecurity
Break a secret with number theory: how RSA works
Encrypt and decrypt a message with small primes by hand, then in code, and see why large primes matter.
- Advanced
- 1–2 weeks
- Free
Software Development · APIs
Build a weather app using a public API
Show current weather and a five-day forecast for any city using a free weather API.
- Intermediate
- 2–7 days
- Free
Music, Theatre and Writing + Programming
Create generative art with code
Write programs that draw a different artwork every time they run and curate a series of ten.
- Intermediate
- 1–2 weeks
- Free
Artificial Intelligence · Deep Learning
Classify handwritten digits with a neural network
Train a small neural network on the MNIST digits and study where it goes wrong.
- Intermediate
- 1–2 weeks
- Free
Programming · Java
Build a library management system
Manage books, members, issue and return with fines, backed by a database.
- Intermediate
- 2–4 weeks
- Free
Artificial Intelligence + Statistics and Probability
Predict house prices with linear regression
Use a public housing dataset to predict price from size, rooms and location.
- Intermediate
- 2–7 days
- Free
Software Development + Applied Mathematics
Create a school timetable generator
Generate a clash-free timetable from teachers, subjects, rooms and periods.
- Advanced
- 1–3 months
- Free
Robotics, IoT and Hardware + Agricultural Technology
Make a smart plant watering system
Water a plant automatically when a sensor says the soil is dry.
- Intermediate
- 1–2 weeks
- 1,000–2,500
Artificial Intelligence · NLP
Detect spam messages with a text classifier
Train a model on a public SMS dataset to separate spam from normal messages.
- Intermediate
- 1–2 weeks
- Free
Cybersecurity + Pure Mathematics
Implement classic ciphers and break them
Write Caesar and substitution ciphers, then crack them with frequency analysis.
- Easy
- 2–7 days
- Free
Agricultural Technology + Robotics, IoT and Hardware
Build a smart irrigation system
Water a plot automatically from soil moisture readings and measure the water saved against a timer.
- Intermediate
- 2–4 weeks
- 1,000–2,500
EdTech and Study Tools + Software Development
Build a flashcard app with spaced repetition
Make a web app that shows each card again just before you would forget it.
- Intermediate
- 1–2 weeks
- Free
Software Development · Frontend
Make a personal portfolio website
Design and publish a fast, mobile-friendly site that shows who you are and what you have built.
- Easy
- 2–7 days
- Free
Cybersecurity · Web Security
Find and fix vulnerabilities in a deliberately weak web app
Run a training app on your own computer, find the classic flaws, then write the fixed code.
- Advanced
- 2–4 weeks
- Free
Cybersecurity · Authentication
Build a password strength checker
Score a password's strength, explain why, and estimate how long it would take to guess.
- Easy
- 2–7 days
- Free
Data · Databases
Design a database for a hostel or library
Model a real system as tables, normalise it and answer ten questions with SQL.
- Intermediate
- 1–2 weeks
- Free
Health Technology + Software Development
Design an app that reminds elders to take medicine
Build a simple reminder app with large text and test it with an older relative.
- Intermediate
- 2–4 weeks
- Free
Programming · Python
Make a to-do list app that saves to a file
Build a command-line task manager that adds, completes, deletes and saves tasks between runs.
- Easy
- 2–7 days
- Free
Games, Graphics and New Tech · Blockchain
Build a simple blockchain
Implement blocks, hashes, proof of work and validation to see how a chain resists tampering.
- Intermediate
- 1–2 weeks
- Free
Artificial Intelligence · Recommendation Systems
Build a movie recommender
Recommend films from the public MovieLens ratings using item similarity.
- Advanced
- 2–4 weeks
- Free
Artificial Intelligence + Agricultural Technology
Recognise plant diseases from leaf photos
Train a model on public leaf images to tell healthy leaves from diseased ones and test it on your own photos.
- Advanced
- 1–3 months
- Free
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