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 specific features rather than starting from scratch. Frameworks often include reusable code components, which can speed up the development process. Frameworks can be specific to certain programming languages or platforms, such as JavaScript frameworks like React or Angular. They help ensure consistency and maintainability in code, making it easier for teams to collaborate and for new developers to understand existing projects.