Ghidra is a software reverse engineering (SRE) framework developed by the NSA. It provides a full-featured desktop application for analyzing compiled binaries, supporting disassembly, decompilation, debugging, and scripting across multiple architectures (x86, ARM, MIPS, PowerPC, RISC-V, etc.). The system is modular, built on a plugin architecture with services, actions, and extension points discovered at runtime. Key entry points include the GUI launcher (ghidra.Ghidra) and headless mode (ghidra.GhidraRun), as well as a Gradle build system for extension development. The debugger integrates with GDB, LLDB, dbgeng, drgn, and x64dbg via a Trace RMI protocol, and includes a p-code emulator and JIT compiler. Ghidra also offers binary similarity search (BSim), version tracking, and a rich API for scripting in Java, Python, and Jython. External dependencies include Java 17, Gradle, and optional third-party tools for PDB and DWARF processing.