JSON for Modern C++

Kotlin multiplatform / multi-format serialization

Extremely fast, in memory, serialization, reflection, and RPC library for C++. JSON, BEVE, BSON, CBOR, CSV, JSONB, MessagePack, TOML, YAML, EETF

TreeFrog Framework : High-speed C++ MVC Framework for Web Application

Restish is a CLI for interacting with REST-ish HTTP APIs with some nice features built-in

json-joy is a library that implements cutting-edge real-time and collaborative editing algorithms and utilities for JSON data models, with a focus on developing the JSON CRDT (Conflict-free Replicated Data Type) specification and implementation.

CBOR codec (RFC 8949, RFC 8742) with CBOR tags, Go struct tag options (toarray, keyasint, omitempty, omitzero), float64/32/16, big.Int, and fuzz tested.

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

C++ header-only JSON library

A path query language for JSON, YAML, TOML, and other serialization formats.

Concise Binary Object Representation (CBOR) Library

Add-on module for Jackson (https://github.com/FasterXML/jackson) to support Scala-specific datatypes

CBOR protocol implementation for C

Uber-project for standard Jackson binary format backends: avro, cbor, ion, protobuf, smile

The libxo library allows an application to generate text, XML, JSON, and HTML output using a common set of function calls. The application decides at run time which output style should be produced.

CBOR support for serde.

Python CBOR (de)serializer with extensive tag support

All-in-one open-source identity and wallet toolkit.

µON - a compact and simple binary object notation

Efficient CBOR and JSON (de)serialization in Scala