Open-source alternatives to Fleece

yaml-cpp is a C++ library for parsing and emitting YAML 1.2 documents. It provides a complete YAML processing pipeline, from reading YAML content into a traversable node tree to writing in-memory data structures back as YAML text. The library represents parsed YAML as a mutable tree of typed nodes, supporting scalars, sequences, maps, and aliases. It uses a recursive-descent parser to build this node tree, and a stream-based emitter to generate YAML output incrementally. Template-based type conversion enables compile-time serialization between YAML nodes and C++ types, including support for c

Defines a minimal interface for serialization and deserialization of events for event-sourcing systems on .NET. Provides implementation packages for writing simple yet versionable Event Contract definitions in F# using ubiquitous serializers.

simdjson is a high-performance JSON parser that utilizes SIMD instructions to process gigabytes of data per second. It functions as a SIMD JSON parser, a multithreaded NDJSON processing library, a UTF-8 validation engine, and a tool for JSON minification and string building. The project focuses on high-throughput data processing, enabling the ingestion of massive JSON volumes and the verification of UTF-8 encoding standards. It includes dedicated capabilities for constructing JSON strings with optimized memory usage and removing unnecessary whitespace from documents to reduce file size. The

Header-only TOML config file parser and serializer for C++17.

A header only C++11 library for parsing TOML

FsPickler is a serialization library that facilitates the distribution of .NET objects. The implementation focuses on performance and completeness in supported types, including F# types. It supports multiple, pluggable serialization formats including Binary, Xml, JSON and BSON. The library is…

This library is a header-only C++ framework designed for the serialization, parsing, and manipulation of structured data. It provides a recursive variant data model that represents arbitrary structures as native types, allowing developers to navigate, modify, and patch hierarchical data using standard pointer paths and declarative update patterns. The project distinguishes itself through its template-based architecture, which enables type-safe data structures and custom type mapping at compile time. It offers a unified interface for binary format abstraction, supporting multiple compact repre

JsonCpp is a C++ library for parsing, manipulating, and generating JSON data. It functions as a data interchange tool that provides a JSON parser to convert formatted text into structured data and a JSON serializer to transform internal data structures back into valid JSON strings. The library features the ability to preserve non-standard JSON comments during the deserialization and serialization process, which supports the management of human-readable configuration files. The project implements a tree-based internal representation for programmatic data access and uses a builder-based config

cpptoml is a header-only library for parsing TOML

A parser combinator library for F#

This library provides support for F# types to System.Text.Json.

Cereal is a C++ serialization library and object persistence tool used to convert data types and containers into formats for storage or transmission. It is implemented as a header-only library, allowing it to be included directly in source code without the need for a compiled binary. The library supports multiple data representations, including binary, XML, and JSON. It provides the ability to define custom archives, enabling the development of specialized output formats to control how data is encoded and stored. The system handles the conversion of complex objects through template-based ser

FSharp.Json is F# JSON serialization library based on Reflection it's written in F# for F#.