Top 4 libtooling open source projects

mutator is an experimental suite of tools aimed at analysis and automation of C/C++ code development

Simple and powerful standalone project for clang-based tools using libtooling (e.g. refactoring, auto-completion, etc.)

C++ to C++ code generation tool (enum2string conversion, serialization, reflection etc.)

C++ compile-time programming (serialization, reflection, code modification, enum to string, better enum, enum to json, extend or parse language, etc.)