C AST Explorer
Code — test.cc C/C++ Source
AST Tree
Terminal

What is an Abstract Syntax Tree (AST)?

An Abstract Syntax Tree (AST) is a hierarchical tree structure that represents the syntactic structure of program source code. Compilers (such as Clang or GCC) convert raw C source text into abstract nodes—such as function declarations (FunctionDecl), variable declarations (VarDecl), and arithmetic operations (BinaryOperator)—to facilitate program analysis, optimizations, and code generation.

How to Use This Tool

  1. Write or edit your C source code in the left editor panel (Code — test.cc).
  2. Click the Compile button in the top header to parse the code using WebAssembly Clang.
  3. Explore the node hierarchy in the AST Tree panel (use Expand/Collapse or search nodes).
  4. Check compilation logs or error messages in the Terminal panel at the bottom.