a modern JSON library for C++20 that's convenient to use (github.com)
from nodeluna@programming.dev to cpp@programming.dev on 24 Jun 2025 16:01
https://programming.dev/post/32796868

It’s not fully finished yet, but it’s getting there, and i didn’t write documentation beyond the README.md and tests/test.cpp but I’d like some feedback on it.

features

• It’s a header only library that’s currently < 3000 loc
• no 3rd-party dependencies
• support for being imported as a module
• supports inserting std containers into json nodes
• highly type safe, which is made possible by using concepts
• easy-to-use object/array iterations
• easy-to-use type casting from json value to native c++ types which is enabled by std::variant and concepts
• exception-free parsing and value casting.
• modern error handling using “expected” type
• exception-free node.try_at(“key”) access
• and more

edit:

documentation link: nodeluna.github.io/ljson

#cpp