Developers utilize frameworks to streamline web development by providing pre-written code and standardized processes, which reduces development time and enhances productivity. Frameworks, such as React, Angular, and Django, offer reusable components, allowing developers to focus more on application logic rather than repetitive coding tasks. They also improve collaboration among team members by establishing common coding practices and structures. Moreover, frameworks often come with built-in tools for testing, debugging, and optimizing performance, resulting in more robust and maintainable applications. This efficiency ultimately accelerates the development lifecycle and improves user experiences.