serialization

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protocolbuffers /protobuf

Star70.7k

Protocol Buffers - Google's data interchange format

serialization protobuf protocol-buffers marshalling rpc protoc protocol-compiler protobuf-runtime

UpdatedFeb 20, 2026
C++

alibaba /fastjson

Star25.7k

FASTJSON 2.0.x has been released, faster and more secure, recommend you upgrade.

android java serialization json json-serialization deserialization json-parser fastjson json-serializer best-performance

UpdatedJul 16, 2024
Java

google /flatbuffers

Star25.6k

FlatBuffers: Memory Efficient Serialization Library

javascript python c java go c-sharp rust c-plus-plus serialization typescript protobuf cross-platform flatbuffers zero-copy marshalling grpc rpc json-parser mmap serialization-library

UpdatedFeb 19, 2026
C++

toon-format /toon

Star22.7k

🎒 Token-Oriented Object Notation (TOON) – Compact, human-readable, schema-aware JSON for LLM prompts. Spec, benchmarks, TypeScript SDK.

serialization tokenization data-format llm

UpdatedFeb 19, 2026
TypeScript

marcuswestin /store.js

Star14k

Cross-browser storage for all use cases, used across the web.

javascript serialization storage localstorage plugins cross-browser store-json

UpdatedJan 16, 2024
JavaScript

json-iterator /go

Star13.9k

A high-performance 100% compatible drop-in replacement of "encoding/json"

go golang serialization parser json serializer deserialization json-parser

UpdatedMay 27, 2024
Go

protobufjs /protobuf.js

Star10.5k

Protocol Buffers for JavaScript & TypeScript.

javascript serialization typescript protobuf protocol-buffers

UpdatedFeb 20, 2026
JavaScript

frohoff /ysoserial

Star8.8k

A proof-of-concept tool for generating payloads that exploit unsafe Java object deserialization.

java serialization exploit jvm deserialization gadget poc vulnerability javadeser

UpdatedDec 4, 2025
Java

ijl /orjson

Star7.9k

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

python rust serialization json datetime numpy deserialization dataclasses pyo3

UpdatedFeb 2, 2026
Python

marshmallow-code /marshmallow

Star7.2k

A lightweight library for converting complex objects to and from simple Python datatypes.

python serialization schema validation marshalling serde deserialization

UpdatedFeb 4, 2026
Python

MessagePack-CSharp /MessagePack-CSharp

Star6.6k

Extremely Fast MessagePack Serializer for C#(.NET, .NET Core, Unity, Xamarin). / msgpack.org[C#]

c-sharp serialization xamarin unity serializer msgpack messagepack lz4

UpdatedOct 23, 2025
C#

EsotericSoftware /kryo

Sponsor

Star6.5k

Java binary serialization and cloning: fast, efficient, automatic

java serialization cloning kryo

UpdatedFeb 16, 2026
HTML

Neargye /magic_enum

Star6k

Static reflection for enums (to string, from string, iteration) for modern C++, work with any enum type without any macro or boilerplate code

c-plus-plus serialization reflection cplusplus cpp metaprogramming enum header-only cpp17 c-plus-plus-17 no-dependencies single-file cplusplus-17 enum-to-string string-to-enum

UpdatedFeb 7, 2026
C++

Kotlin /kotlinx.serialization

Star5.9k

Kotlin multiplatform / multi-format serialization

kotlin serialization json protobuf cbor

UpdatedFeb 13, 2026
Kotlin

USCiLab /cereal

Star4.6k

A C++11 library for serialization

c-plus-plus serialization cereal

UpdatedJan 20, 2025
C++

alibaba /HandyJSON

Star4.3k

A handy swift json-object serialization/deserialization library

swift serialization json mapping deserialization json-fields

UpdatedMar 8, 2024
Swift

alibaba /fastjson2

Star4.3k

🚄 FASTJSON2 is a Java JSON library with excellent performance.

android java serialization json big-data high-performance json-serialization deserialization json-parser graal jsonb json-path fastjson json-serializer json-deserialization java-json graalvm-native-image fastjson2

UpdatedFeb 20, 2026
Java

apache /fory

Star4.2k

A blazingly fast multi-language serialization framework powered by JIT and zero-copy.

javascript python java rust fast golang encoding serialization compression lightning cpp transfer zero-copy persistence marshalling jit rpc hacktoberfest cross-language multiple-language

UpdatedFeb 20, 2026
Java

rkyv /rkyv

Sponsor

Star4k

Zero-copy deserialization framework for Rust

rust serialization zero-copy

UpdatedFeb 20, 2026
Rust

inikulin /parse5

Star3.9k

HTML parsing/serialization toolset for Node.js. WHATWG HTML Living Standard (aka HTML5)-compliant.

html serialization parser html5 serializer whatwg html-parsing

UpdatedFeb 17, 2026
TypeScript

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