JSON.NET - JSON framework for .NET

•    CSharp

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Json.NET is a popular high-performance JSON framework for .NET. It is serializes .NET objects to JSON. It converts JSON to LINQ, XML and lot more. It performs faster than .NET buit in serializers.

json json-parser json-dotnet json-generator json-linq

Jackson - Best JSON parser for Java

•    Java

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Jackson is one of best JSON parser for Java. More than that, Jackson is a suite of data-processing tools for Java (and the JVM platform), including the flagship streaming JSON parser / generator library, matching data-binding library (POJOs to and from JSON) and additional data format modules to process data encoded in Avro, BSON, CBOR, CSV, Smile, (Java) Properties, Protobuf, XML or YAML; and even the large set of data format modules to support data types of widely used data types such as Guava, Joda, PCollections and many, many more.

json json-parser serialization

Jackson JSON - JSON Parser in Java

•    Java

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Jackson is a multi-purpose Java library for processing JSON data format. This project contains core low-level incremental ("streaming") parser and generator abstractions used by Jackson Data Processor. It also includes the default implementation of handler types (parser, generator) that handle JSON format.

json json-parser java-json json-generator streaming

pikkr - JSON parser which picks up values directly without performing tokenization in Rust

•    Rust

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Pikkr is a JSON parser which picks up values directly without performing tokenization in Rust. This JSON parser is implemented based on Y. Li, N. R. Katsipoulakis, B. Chandramouli, J. Goldstein, and D. Kossmann. Mison: a fast JSON parser for data analytics. In VLDB, 2017. This JSON parser performs well when there are a limited number of different JSON structural variants in a JSON data stream or JSON collection, and that is a common case in data analytics field.

pikkr json json-parser simd

Noggit - JSON streaming parser

•    Java

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Noggit is the world's fastest streaming JSON parser for Java. It is used in Apache Solr.

json-parser json-streaming json-serialization json

ServiceStack text - NET's fastest JSON, JSV and CSV Text Serializers

•    CSharp

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ServiceStack.Text is an independent, dependency-free serialization library that contains ServiceStack's text processing functionality, including: JsonSerializer, TypeSerializer (JSV-Format), CsvSerializer, T.Dump extension method, StringExtensions - Xml/Json/Csv/Url encoding, BaseConvert, Rot13, Hex escape, etc., Stream, Reflection, List, DateTime, etc extensions and utils.

json json-parser serialize deserialize json-dotnet csv-parser reflection

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

•    C++

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RapidJSON is a JSON parser and generator for C++. RapidJSON is small but complete. It supports both SAX and DOM style API. RapidJSON is self-contained and header-only. It does not depend on external libraries such as BOOST. It even does not depend on STL.

json-parser json

Jsmn - World fastest JSON parser/tokenizer

•    C

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jsmn (pronounced like 'jasmine') is a minimalistic JSON parser in C. It can be easily integrated into resource-limited or embedded projects. Most JSON parsers offer you a bunch of functions to load JSON data, parse it and extract any value by its name. jsmn proves that checking the correctness of every JSON packet or allocating temporary objects to store parsed JSON fields often is an overkill.

json json-parser

Flexjson - Lightweight JSON parser

•    Java

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Flexjson is a lightweight library for serializing Java objects into JSON. What's different about Flexjson is it's control over what gets serialized allowing both deep and shallow copies of objects.

json json-parser json-serialization

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

•    CSharp

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Jil is a fast JSON (de)serializer, built on Sigil with a number of somewhat crazy optimization tricks.

json json-parser serialize deserialize json-dotnet

jstream - Streaming JSON parser for Go

•    Go

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jstream is a streaming JSON parser and value extraction library for Go.

json json-parser json-parsing-library json-deserialization json-decoding

jsonstreamingparser - A JSON streaming parser implementation in PHP.

•    PHP

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This is a simple, streaming parser for processing large JSON documents. Use it for parsing very large JSON documents to avoid loading the entire thing into memory, which is how just about every other JSON parser for PHP works. For more details, I've written up a longer explanation of the JSON streaming parser that talks about pros and cons vs. the standard PHP JSON parser.

rabl - General ruby templating with json, bson, xml, plist and msgpack support

•    Ruby

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RABL (Ruby API Builder Language) is a Rails and Padrino ruby templating system for generating JSON, XML, MessagePack, PList and BSON. When using the ActiveRecord 'to_json' method, I find myself wanting a more expressive and powerful solution for generating APIs. This is especially true when the JSON representation is complex or doesn't match the exact schema defined within the database. Anyone who has tried the 'to_json' method used in ActiveRecord for generating a JSON response has felt the pain of this restrictive approach. RABL is a general templating system created to solve these problems by approaching API response generation in an entirely new way.

java - jsoniter (json-iterator) is fast and flexible JSON parser available in Java and Go

•    Java

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jsoniter (json-iterator) is fast and flexible JSON parser available in Java and Go

json json-parser serialization serializer deserialization parser

JSON-java - A reference implementation of a JSON package in Java

•    Java

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A reference implementation of a JSON package in Java. The files in this package implement JSON encoders/decoders in Java. It also includes the capability to convert between JSON and XML, HTTP headers, Cookies, and CDL.

json-parser json json-serialization xml-to-json

json - JSON for Modern C++

•    C++

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Intuitive syntax. In languages such as Python, JSON feels like a first class data type. We used all the operator magic of modern C++ to achieve the same feeling in your code. Check out the examples below and you'll know what I mean.Trivial integration. Our whole code consists of a single header file json.hpp. That's it. No library, no subproject, no dependencies, no complex build system. The class is written in vanilla C++11. All in all, everything should require no adjustment of your compiler flags or project settings.

json json-pointer json-patch cbor msgpack header-only stl-containers json-serialization json-parser rfc-6901 rfc-6902 rfc-7159 rfc-7049 json-diff messagepack rfc-8259

jason - A blazing fast JSON parser and generator in pure Elixir.

•    Elixir

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A blazing fast JSON parser and generator in pure Elixir. The parser and generator are at least twice as fast as other Elixir/Erlang libraries (most notably Poison). The performance is comparable to jiffy, which is implemented in C as a NIF. Jason is usually only twice as slow.

elixir json

jsonparser - Alternative JSON parser for Go that does not require schema (so far fastest)

•    Go

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It does not require you to know the structure of the payload (eg. create structs), and allows accessing fields by providing the path to them. It is up to 10 times faster than standard encoding/json package (depending on payload size and usage), allocates no memory. See benchmarks below.Originally I made this for a project that relies on a lot of 3rd party APIs that can be unpredictable and complex. I love simplicity and prefer to avoid external dependecies. encoding/json requires you to know exactly your data structures, or if you prefer to use map[string]interface{} instead, it will be very slow and hard to manage. I investigated what's on the market and found that most libraries are just wrappers around encoding/json, there is few options with own parsers (ffjson, easyjson), but they still requires you to create data structures.

json json-parser perfomance parser

sajson - Lightweight, extremely high-performance JSON parser for C++11

•    C++

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sajson is an extremely high-performance, in-place, DOM-style JSON parser written in C++. Originally, sajson meant Single Allocation JSON, but it now supports dynamic allocation too. sajson parses an input document into a contiguous AST structure. Unlike some other high-performance JSON parsers, the AST is efficiently queryable. Object lookups by key are O(lg N) and array indexing is O(1).

json json-parser

spray-json - A lightweight, clean and simple JSON implementation in Scala

•    Scala

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spray-json is a lightweight, clean and efficient JSON implementation in Scala. spray-json is available from maven central.

json json-parser json-serialization