nlohmann / json

JSON for Modern C++

alibaba / fastjson2

🚄 FASTJSON2 is a Java JSON library with excellent performance.

okuramasafumi / alba

Alba is a JSON serializer for Ruby, JRuby and TruffleRuby.

danielaparker / jsoncons

A C++, header-only library for constructing JSON and JSON-like data formats, with JSON Pointer, JSON Patch, JSON Schema, JSONPath, JMESPath, CSV, MessagePack, CBOR, BSON, UBJSON, toon-format

yosiat / panko_serializer

High Performance JSON Serialization for ActiveRecord & Ruby Objects

python-rapidjson / python-rapidjson

Python wrapper around rapidjson