The increasing cost of online education and the lack of personalized mentorship have created a significant barrier for learners worldwide. This paper presents SkillSwap, a full-stack peer-to-peer web application that enables users to exchange skills with one another without any monetary transaction. SkillSwap employs a smart matching algorithm to pair users based on complementary skill sets — where one user's offered skills align with another user's desired skills. The platform incorporates features including user authentication with JWT, dynamic profile management, a swap request system, real-time messaging, and a rating and feedback mechanism. Built using React.js, Node.js, Express.js, and MongoDB, SkillSwap demonstrates how collaborative and community-driven learning can bridge the gap left by expensive traditional online courses. Evaluation of the platform highlights its effectiveness in facilitating skill-based exchanges across diverse domains, including technology, arts, and professional development.

Keywords: Skill Exchange, Peer-to-Peer Learning, Community Platform, MERN Stack, Skill Matching, Collaborative Learning, Web Application