A software framework is a pre-built collection of tools, libraries, and best practices that helps developers create applications more efficiently. It provides a structured foundation, allowing programmers to focus on writing the unique parts of their software instead of starting from scratch. Frameworks often include features like user interface components, database management, and security protocols, making development faster and more reliable. Using a framework can also promote consistency across projects, as it encourages developers to follow established patterns and conventions. Popular examples of software frameworks include Django for web development and React for building user interfaces. These frameworks help streamline the development process and improve code quality.