Choosing the right technology stack is a crucial decision in the development of web applications. Two popular stacks, MEAN (MongoDB, Express.js, Angular, Node.js) and MERN (MongoDB, Express.js, React, Node.js), have gained significant traction in the developer community. In this guide, we'll explore the key features, advantages, and considerations of MEAN and MERN stacks to help you make an informed decision for your next project.