JSON Tutorial

JSON Tutorial is Milo Yip’s from-scratch tutorial for building a JSON library in C. It teaches software construction through a practical, standards-based project rather than abstract exercises alone. The tutorial guides learners through implementing JSON parsing, data representation, numbers, strings, arrays, objects, memory management, testing, and related library behavior. JSON is chosen because it is simple enough for learners to approach, but real enough to demonstrate how useful software is built. The project is especially valuable for C and C++ learners who have solved small exercises but want to understand how a complete library grows step by step. Its main value is combining systems programming, parsing, testing, and project structure in one approachable tutorial.