Personal Budgeting and Expense Tracking Web Application

Added Jun 2025 3 design docs

Most people cannot say where last month's money went: transactions scatter across accounts, budgets live in their heads, and overspending is only discovered after the fact. This project builds a personal finance platform that turns raw spending into visible, manageable patterns users can act on. The intern implements an Express and Node.js backend with MongoDB, providing authenticated CRUD APIs for expenses, budgets, and categories, plus aggregation endpoints that compute spending trends over time. On the frontend, Next.js, React, and TypeScript with Tailwind CSS deliver a responsive dashboard where users record expenses, set monthly budgets per category, and explore interactive charts showing where their money goes and how it changes month over month. Secure handling of user data runs through the design, since financial records are among the most sensitive data a person owns. The project exercises the skills behind every data-centric consumer product: API design, aggregation pipelines, chart-driven interfaces, and authentication done right. The intern finishes with a polished, personal-scale fintech application that proves they can move data from entry to insight.

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