Abstract: Language learning is an essential skill in the modern globalized world. Many learners struggle to find real-time speaking partners to practice their target language. This project, Language Exchange Explorer, is a full-stack web application designed to connect users who want to mutually exchange languages. The system allows users to register, create profiles, specify their native and learning languages, and automatically match with suitable partners.The application is developed using frontend technologies such as HTML, CSS, and JavaScript, and backend technologies including Node.js, Express.js, and MongoDB. The system implements authentication, profile management, matching logic, and chat functionality.This platform promotes peer-to-peer learning, real-time interaction, and cost-effective language improvement. The project demonstrates practical implementation of full-stack development concepts including REST APIs, database integration, user authentication, and system design using Data Flow Diagrams (DFD).

Keywords: Language Exchange, Full Stack Development, Web Application, Node.js, Express.js, MongoDB, HTML, CSS, JavaScript

Downloads: | DOI: 10.17148/IARJSET.2026.13373