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JavaScript JSON Libraries

Libraries for parsing, serializing, and manipulating JSON data and its extended variants (such as JSON5) in JavaScript environments.

17 projects

9,679 contributors

$165M

Fastify

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

Contributors

7,536

Organizations

1,731

Software value

$11M

fast-xml-parser

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

Contributors

734

Organizations

185

Software value

$153M

JSON5

JSON5 is a proposed extension to JSON that aims to make it easier for humans to write and maintain by adding some minimal syntax features from ECMAScript/JavaScript. It adds features like comments, unquoted property names, multi-line strings, trailing commas, and allows NaN and Infinity in numbers.

Contributors

317

Organizations

156

Software value

$99K

is-my-json-valid

A JSONSchema validator that uses code generation to be extremely fast

Contributors

240

Organizations

94

Software value

$128K

jsonfile

Easily read/write JSON files.

Contributors

190

Organizations

57

Software value

$31K

Jayson

Jayson is a simple but featureful JSON-RPC 2.0/1.0 client and server for node.js

Contributors

187

Organizations

68

Software value

$212K

json-bigint

A Node.js library for parsing and stringifying large integers in JSON that preserves precision by handling numbers as strings to avoid IEEE-754 double precision floating point limitations

Contributors

154

Organizations

54

Software value

$25K

Serialize JavaScript

Serialize JavaScript to a superset of JSON that includes regular expressions and functions.

Contributors

152

Organizations

63

Software value

$27K

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

jsesc

Given some data, jsesc returns the shortest possible stringified & ASCII-safe representation of that data.

Contributors

51

Organizations

28

Software value

$53K

parse-json

Parse JSON with more helpful errors

Contributors

49

Organizations

32

Software value

$12K

JSON-LD Processor and API Implementation

A JSON-LD Processor and API implementation in JavaScript

This project hasn't been onboarded to LFX Insights.

node-jsonpointer

JSON Pointer (RFC6901) implementation for Node.js

This project hasn't been onboarded to LFX Insights.

strip-json-comments

Strip comments from JSON. Lets you use comments in your JSON files!

This project hasn't been onboarded to LFX Insights.

tdegrunt-jsonschema-validation-tool

JSON Schema validation

This project hasn't been onboarded to LFX Insights.
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