In the ever-evolving landscape of web development, selecting the right tech stack can define the success and scalability of your application. Two of the most popular JavaScript-based full-stack frameworks are MERN (MongoDB, Express.js, React, Node.js) and MEAN (MongoDB, Express.js, Angular, Node.js). While both share a similar backend structure, their frontend frameworks—React for MERN and Angular for MEAN—make a world of difference.