LLDB is a powerful debugger that is part of the LLVM project. It is designed to help developers find and fix bugs in their code by allowing them to inspect the state of a program while it is running. LLDB supports various programming languages, including C, C++, and Objective-C, making it versatile for different development environments. One of the key features of LLDB is its ability to work seamlessly with Xcode, Apple's integrated development environment. This integration provides developers with a user-friendly interface to set breakpoints, step through code, and examine variables, enhancing the debugging process and improving overall code quality.