Full-featured Kanban board with drag-and-drop cards and columns, multiple views (Board, Table, Calendar, Timeline), undo/redo history, auto-save to IndexedDB, zen mode, command palette, smart search, and keyboard shortcuts. Built with React 19, TypeScript, and Zustand; architected normalized immutable state with O(1) lookups and comprehensive test coverage.

Developer tool that renders any directory structure as an interactive visual tree. Solves the need to quickly understand project layouts at a glance. Built with JavaScript DOM manipulation; designed and implemented the full parsing and rendering logic from scratch.

Spaced-repetition flashcard app for vocational and university students. Features interactive 3D-flip cards, an adapted SM-2 algorithm, visual progress statistics with charts, and a full deck/card editor. Built with React and Vite; implemented flip logic, local-storage persistence, and responsive dark UI optimised for long study sessions.

Timed multiple-choice quiz app with score tracking and a results summary screen. Solves keeping users engaged with immediate feedback and a clear final score. Built with JavaScript; implemented question shuffling, countdown timer, and local-storage score persistence.

Spaced-repetition flashcard app that lets users create, study, and score custom decks. Solves the need for a personalised study tool without relying on third-party services. Built with React and TypeScript; architected component state, deck CRUD operations, and the study-session scoring flow.

Browser-based memory card game that fetches live Pokémon data from the PokéAPI. Solves the challenge of building engaging stateful UIs without a framework. Built with JavaScript and async/await; implemented flip/match logic, score tracking, and API integration.