Open-source alternatives to Msgpack Java

EDI Serializer/Deserializer. Supports EDIFact, X12 and TRADACOMS formats

Newtonsoft.Json is a data processing utility for the .NET ecosystem designed to facilitate the transformation and exchange of information. It functions as a serialization library and object mapping framework, enabling the conversion of complex application objects into formatted JSON strings and the reconstruction of structured objects from raw JSON data. The library distinguishes itself through a flexible architecture that supports both strongly-typed class mapping and a dynamic object model for schema-less data manipulation. It employs reflection-based metadata mapping to automate property a

A declarative serialization framework for controlling formatting of data at the byte and bit level using field bindings, converters, and code.

CsvHelper is a library for reading and writing comma-separated value files by mapping data to custom class objects. It functions as a parsing library and data mapper that converts flat-file text into structured data objects and serializes internal data sets back into standard CSV files. The project emphasizes memory efficiency through a parser that optimizes resource consumption. It utilizes field value caching and an interned string cache to store repetitive values, which reduces memory overhead when processing large datasets. The library provides a configuration-driven parsing engine that

Fast .NET JSON (De)Serializer, Built On Sigil

A Java library for serializing objects as PHP serialization format.

protobuf-net is a binary serialization framework and .NET library that implements the Protocol Buffers specification. It functions as a schema-based serialization tool and contract-first data mapper, converting complex object graphs into a compact binary format for storage and network transmission. The library enables cross-platform data exchange and high-performance networking by reducing payload sizes and processing time. It specifically supports object hierarchy persistence, allowing the serialization and reconstruction of complex class structures that include inheritance and derived types

Bond was a cross-platform framework for working with schematized data. The open-source project ended on March 31, 2025.

MessagePack implementation for Common Language Infrastructure / msgpack.orgC#

MessagePack-CSharp is a high-performance binary serialization library for .NET applications that converts object graphs into the MessagePack format. It functions as a C# data serialization toolkit and a polymorphic binary encoder capable of handling abstract classes and interfaces using union keys to identify concrete derived types. The library provides a binary format transcoder to transform binary data into human-readable JSON for debugging. It supports ahead-of-time formatter generation to avoid runtime overhead and implements LZ4 binary compression to reduce the size of serialized data.

Definitely Fastest and Zero Allocation JSON Serializer for C#(NET, .NET Core, Unity, Xamarin).

Infinitely Fast Deserializer for .NET, .NET Core and Unity.

Simple Binary Encoding (SBE) - High Performance Message Codec

Schema.org objects turned into strongly typed C# POCO classes for use in .NET. All classes can be serialized into JSON/JSON-LD and XML, typically used to represent structured data in the head section of html page.

Binary serializer for POCO objects

.NET's fastest JSON, JSV and CSV Text Serializers

Yet Another XML Serialization Library for the .NET Framework and .NET Core

Okio is a Java I/O library providing a set of tools for efficient byte-stream processing and file system operations. It functions as a buffered byte stream handler and streaming data transformer, utilizing a cross-platform file system API to manage data movement. The project is distinguished by its use of pooled mutable byte buffers that treat sequences as queues to reduce memory copying and garbage collection churn. It further decouples file operations from the host operating system through an abstraction-based file system, allowing for consistent path manipulation and atomic operations acro

A lightning fast, transactional, file-based FIFO for Android and Java.

YamlDotNet is a YAML serialization library and data mapping tool for .NET. It functions as a parser and generator that converts between .NET objects and YAML formatted text for data storage and configuration. The project provides capabilities for YAML document parsing and data object mapping. It transforms YAML streams into low-level representations or high-level object models for programmatic analysis and converts structured data objects back into valid YAML strings. The library covers general data serialization and configuration file management, allowing application data structures to be m

A configurable and eXtensible Xml serializer for .NET.

Fury is a multi-language binary serialization framework designed for encoding domain objects and complex graphs to facilitate cross-language data exchange. It includes an interface definition language compiler that translates schema definitions into idiomatic native types and serialization boilerplate across multiple languages. The project distinguishes itself through a zero-copy binary reader that allows specific fields to be accessed without deserializing the entire object, as well as an object graph serializer that preserves circular references and referential integrity. It also features a

Easy to use, easy to extend and high-performance library for CSV parsing with .NET