A framework in software development is a standardized set of tools, libraries, and best practices that provide a foundation for building applications. Frameworks are designed to streamline the development process by offering pre-built components and guidelines for structuring code. This allows developers to focus on creating the unique aspects of their applications without reinventing common functionalities. For example, front-end frameworks like Angular, React, and Vue.js help build dynamic user interfaces, while back-end frameworks like Django, Ruby on Rails, and Spring support server-side logic and database interactions.

Frameworks promote code reuse, consistency, and maintainability by enforcing a specific structure and design patterns. They often come with built-in tools for routing, authentication, form handling, and other common tasks, which accelerates development and reduces the likelihood of errors. Additionally, frameworks are typically well-documented and supported by large communities, providing resources for troubleshooting and extending functionality. By leveraging frameworks, developers can build robust and scalable applications more efficiently, adhering to industry standards and best practices.