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High-Performance JSON Libraries

Libraries designed for efficient, high-speed JSON serialization and deserialization using techniques such as SIMD and JIT to maximize performance.

19 projects

22,673 contributors

$82M

Fastify

Fastify is a web framework highly focused on providing the best developer experience with the least overhead and a powerful plugin architecture.

Contributors

7,517

Organizations

1,729

Software value

$11M

Fastjson

Fastjson is a high-performance JSON processor library for Java that provides features for converting Java Objects to JSON format and vice versa. It offers fast parsing and serialization capabilities, with support for complex object graphs and various data types.

Contributors

4,581

Organizations

406

Software value

$7.4M

JSON for Modern C++

A modern C++ library providing JSON parsing, serialization and manipulation capabilities with an intuitive syntax and extensive documentation. It offers header-only integration, type safety, STL container compatibility, and support for JSON schema validation.

Contributors

3,692

Organizations

691

Software value

$4.7M

Serde JSON

A high-performance JSON serialization and deserialization library for Rust that integrates with Serde's data model to provide efficient and flexible JSON handling

Contributors

1,163

Organizations

482

Software value

$564K

JSON-C

JSON-C is a lightweight C library for parsing, generating and manipulating JSON data. It provides a simple API for working with JSON objects, arrays and values while handling memory management and data validation.

Contributors

763

Organizations

221

Software value

$419K

orjson

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

Contributors

733

Organizations

270

Software value

$933K

UltraJSON

Ultra fast JSON decoder and encoder written in C with Python bindings

Contributors

704

Organizations

272

Software value

$12M

simdjson

Parsing gigabytes of JSON per second : used by Facebook/Meta Velox, the Node.js runtime, ClickHouse, WatermelonDB, Apache Doris, Milvus, StarRocks

Contributors

668

Organizations

194

Software value

$10M

jsoniter

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

Contributors

660

Organizations

199

Software value

$506K

Typia

Super-fast/easy runtime validators and serializers via transformation

Contributors

534

Organizations

168

Software value

$17M

easyjson

A fast JSON serializer and deserializer library for Go that generates code for efficient marshaling and unmarshaling of JSON data, avoiding reflection for improved performance

Contributors

446

Organizations

162

Software value

$559K

Sonic

Sonic is a high-performance JSON serialization and deserialization library written in Go, designed to be a faster alternative to the standard encoding/json package. It uses JIT (Just-In-Time) compilation techniques to generate optimized code for JSON handling.

Contributors

418

Organizations

109

Software value

$9.9M

go-json

Fast JSON encoder/decoder compatible with encoding/json for Go

Contributors

320

Organizations

126

Software value

$3.2M

jsoniter-scala

A high-performance JSON serialization/deserialization library for Scala that provides fast and memory-efficient processing of JSON data through compile-time code generation

Contributors

212

Organizations

71

Software value

$2.8M

json-smart

JSON Smart is a Linux Foundation project focused on developing efficient tools for JSON data processing, offering streamlined parsing, validation, and manipulation capabilities for developers working with JSON-based applications and services.

Contributors

193

Organizations

48

Software value

$452K

fast-safe-stringify

A Node.js library that provides fast and safe JSON stringification, handling circular references and special JavaScript values like BigInt, while being significantly faster than JSON.stringify()

Contributors

69

Organizations

30

Software value

$34K

Oj

Optimized JSON

This project hasn't been onboarded to LFX Insights.

RapidJSON

A fast JSON parser/generator for C++ with both SAX/DOM style API

This project hasn't been onboarded to LFX Insights.
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