Programming · Java
Build a library management system
Manage books, members, issue and return with fines, backed by a database.
- Intermediate
- 2–4 weeks
- Free
606 projects · 13 streams · every class
Programming projects 9
Projects that teach a language by building something real: games, tools, automations and small utilities.
9 Programming projects
Programming + Pure Mathematics
Write classic sorting algorithms and race them
Implement bubble, insertion, merge and quick sort and plot how their running time grows.
- Intermediate
- 2–7 days
- Free
Programming + Cybersecurity
Make a file encryption tool
Encrypt and decrypt files with a password using a well-tested library.
- Intermediate
- 2–7 days
- Free
Programming + Systems and Cloud
Build a tiny key-value store in Rust
Write a persistent key-value database with get, set and delete and an append-only log.
- Advanced
- 2–4 weeks
- Free
Programming · Python
Build a Markdown-to-HTML converter
Write a tool that converts headings, lists, links, bold and code blocks from Markdown to HTML.
- Intermediate
- 2–7 days
- Free
Programming + Pure Mathematics
Write a unit-tested maths library
Publish a small library for fractions, primes and matrices with full tests and docs.
- Intermediate
- 1–2 weeks
- Free
Programming · Java
Develop a chess game for two players
Implement a full chess board with legal move checking, check and checkmate.
- Advanced
- 2–4 weeks
- Free
Programming + Data
Write a web scraper for public data and analyse it
Collect a table of public information from a site that allows it and analyse the result.
- Intermediate
- 1–2 weeks
- Free
Programming · Go
Write a command-line expense tracker in Go
Build a fast command-line tool to add expenses, list them and summarise by month and category.
- Intermediate
- 1–2 weeks
- Free
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