A framework is a pre-built collection of code, tools, and rules that provides a foundation for developing software. Instead of starting from scratch, developers use a framework to speed up development and follow established best practices.
For example:
.NET Framework is used to build Windows applications.
Spring is a framework for Java applications.
Django is a framework for building websites with Python.
React (often called a framework, though technically a library) helps build user interfaces.
Think of it like building a house:
Programming language = the building materials (bricks, wood, steel).
Framework = the blueprint and the basic structure that helps you build faster and more consistently.
Using a framework saves time, improves code organization, and often includes built-in features such as security, database access, and user interface components.