Expense Tracker — Financial Management

Full-Stack (React + NestJS)

About

Full-stack expense management application with React frontend, NestJS backend, MongoDB database, and Cloudinary integration for receipt image uploads — complete with transaction tracking and budget management.

My Role

Built the full application: React (Vite) frontend with data visualization, NestJS backend with MongoDB persistence, Cloudinary integration for receipt storage, and TypeScript throughout.

Core Capabilities

• Transaction tracking with categories and tags
• Budget management and spending analysis
• Receipt image upload via Cloudinary
• Data visualization for spending patterns
• Monthly/weekly expense reports
• Multi-category expense categorization

Architecture

• React 18 with Vite for fast development
• NestJS backend with MongoDB (Mongoose)
• Cloudinary for image storage and optimization
• TypeScript across frontend and backend
• RESTful API with validation

Tech Stack