Calculator App using React JS with Source Code
So far, we’ve seen what React is and what it can do. To summarize, we learned about Calculator App in React JS Project web apps, React Components, Props, States, and …
React.js is the most popular JavaScript framework for building modern web user interfaces, and it’s increasingly the front-end choice for BSIT and BSCS capstone projects. This hub collects free React source code, step-by-step tutorials, and full-stack capstones combining React with Node.js, Express, and MongoDB.
What you’ll find in the React Projects hub
Beginner React projects: todo apps, weather apps, calculators (learning React fundamentals)
Intermediate components: forms with validation, multi-step wizards, modal systems
State management examples: Context API, Redux Toolkit, Zustand patterns
Full-stack MERN capstones: React + Express + MongoDB + Node.js
React + REST API integrations: fetch, axios, React Query patterns
Step-by-step tutorials with database setup and deployment instructions
Core React concepts in these projects
Components: functional components with hooks (the modern standard)
Hooks: useState, useEffect, useContext, useReducer, custom hooks
Routing: React Router v6 for multi-page SPAs
State management: local state, lifted state, Context, Redux/Zustand
API integration: REST and GraphQL clients
Forms & validation: Formik, React Hook Form, Yup schemas
Styling approaches: Tailwind CSS, styled-components, CSS Modules
Recommended tech stack for React capstones
For a defendable 2026 BSIT capstone using React, the MERN stack is most accessible: MongoDB (NoSQL database), Express (Node.js web framework), React (front-end), Node.js (server runtime). Alternative: React + Django REST Framework + PostgreSQL if your panel prefers a more traditional relational database. Browse Node.js Projects for back-end starters.
Related collections
Node.js Projects, Express APIs and full-stack back-ends
JavaScript Projects, vanilla JS and browser-only projects
Django Projects, Python alternative for React back-ends
Final Year Projects Hub, capstone ideas + documentation templates
Scroll down to browse the full React Projects catalog ↓
So far, we’ve seen what React is and what it can do. To summarize, we learned about Calculator App in React JS Project web apps, React Components, Props, States, and …
The College management system project in React JS and SQLite Database is a straightforward React project for keeping track of student and teacher data. This is a small project that …
This is a basic chat app React js and socket.io. React has the capacity to accelerate web development by providing a variety of essential tools. Socket.IO allows for bidirectional, real-time, …
Inventory Management System Project in React JS with Source Code – This React JS project for an inventory management system is a simple React JS project that uses JavaScript. This …
This Crime Reporting System Project in React JS is a simple JavaScript project in React Js. This project is a simple React JS example of a persons finder. React js …
This Simple App written using crud operation in react JS and MySQL to display menu options at an Negros Restaurant. In this article, I’ll demonstrate how to use the Web …
This Expense Tracker Application Project in React JS covers all the necessary elements that may be used by first-year, IT students for their personal learning or college projects, and is …
useState, useEffect, useContext). Hooks are easier to test, compose, and reuse. Panels in 2026 expect to see hooks-based React unless your capstone is specifically maintaining or extending an old class-component codebase.localStorage or (more securely) httpOnly cookies, then includes the token in Authorization: Bearer headers on subsequent API calls. Use React Router with a ProtectedRoute component to gate authenticated pages. Libraries like react-query + axios interceptors handle token refresh cleanly. Document this pattern clearly in your Chapter 3.