nlohmann / json

JSON for Modern C++

simdjson / simdjson

Parsing gigabytes of JSON per second : used by Facebook/Meta Velox, the Node.js runtime, ClickHouse, WatermelonDB, Apache Doris, Milvus, StarRocks

json-everything / json-everything

System.Text.Json-based support for all of your JSON needs.

APIDevTools / json-schema-ref-parser

Parse, Resolve, and Dereference JSON Schema $ref pointers in Node and browsers

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

taocpp / json

C++ header-only JSON library