Repository Index

FlatBuffers: Memory Efficient Serialization Library

• flatbuffers
• serialization
• serialization-library
• json-parser

🎒 Token-Oriented Object Notation (TOON) – compact, human-readable serialization of JSON data for LLM prompts. TypeScript SDK, CLI, benchmarks.

• data-format
• llm
• serialization
• tokenization

Apache Thrift

• d
• thrift
• cplusplus
• dart

A fast, convenient and nonintrusive conversion framework between JSON and model. Your model class doesn't need to extend any base class. You don't need to modify any model file.

• objective-c
• model
• json
• dictionary

📟 JSON library for Arduino and embedded C++. Simple and efficient.

• arduino
• c-plus-plus
• iot
• embedded

Java binary serialization and cloning: fast, efficient, automatic

• java
• serialization
• cloning
• kryo

TinyXML2 is a simple, small, efficient, C++ XML parser that can be easily integrated into other programs.

A handy swift json-object serialization/deserialization library

• swift
• json
• serialization
• json-fields

Validate XML, Parse XML and Build XML rapidly without C/C++ based libraries and no callback.

• fast-xml-parser
• xml2json
• xml2js
• fast

Cista is a simple, high-performance, zero-copy C++ serialization & reflection library.

• serialization
• cpp
• cpp17
• reflection

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

• toml
• cplusplus-17
• cplusplus-20
• header-only

An incredibly fast, pure Elixir JSON library

• elixir
• elixir-libraries
• json
• json-library

Go library for the TOML file format

• go
• toml
• toml-parsing
• hacktoberfest

Fastest end-to-end CSV ingestion for Ruby (with C acceleration). SmarterCSV auto-detects formats, applies smart defaults, and returns Rails-ready hashes for seamless use with ActiveRecord, Sidekiq, parallel jobs, and S3 pipelines — even for messy user-uploaded real-world data.

• csv
• csv-converter
• csv-export
• csv-file

An ActionScript 3 Library that contains a number of classes and utilities for working with ActionScript? 3. These include classes for MD5 and SHA 1 hashing, Image encoders, and JSON serialization as well as general String, Number and Date APIs.

One of the World's Fastest .NET CSV Parsers. Modern, minimal, fast, zero allocation, reading and writing of separated values (`csv`, `tsv` etc.). Cross-platform, trimmable and AOT/NativeAOT compatible with blazing fast SIMD vectorized parsing.

• csharp
• csv
• csv-parser
• csv-reader

Efficient, easy-to-use, and fast PHP JSON stream parser

• php
• stream-processing
• json-parser
• json-iterator

Cross-platform C++ library providing a simple API to read and write INI-style configuration files

The official Firely .NET SDK for HL7 FHIR

• fhir
• dotnet-core
• dotnet
• parsing

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

• json
• cbor
• jsonpath
• csv

✌ Convert anything into anything in one operation; JSON data into class instances, hex strings into UIColor/NSColor, y/n strings to booleans, arrays and dictionaries of these; anything you can make sense of!

• swift
• json-helper
• hex-strings
• json-string

Header-only C++11 library to encode/decode base64, base64url, base32, base32hex and hex (a.k.a. base16) as specified in RFC 4648, plus Crockford's base32. MIT licensed with consistent, flexible API.

Fast, lightweight, and RFC 4180 compliant CSV library for Java. Zero dependencies, ~90 KiB. Trusted by Apache NiFi, JUnit, and Neo4j.

• csv
• java
• csv-parser
• csv-reader

🐟 A Swiss-Army Knife for Data I/O

• r
• rio
• stata
• spss