big.js - A small, fast JavaScript library for arbitrary-precision decimal arithmetic.

•    Javascript

---

A small, fast JavaScript library for arbitrary-precision decimal arithmetic. The little sister to bignumber.js and decimal.js. See here for some notes on the difference between them.

bignumber bigdecimal arbitrary-precision decimal-places arbitrary precision arithmetic big number decimal float biginteger bigint bignum

bignumber.js - A JavaScript library for arbitrary-precision decimal and non-decimal arithmetic

•    Javascript

---

A JavaScript library for arbitrary-precision decimal and non-decimal arithmetic. If a smaller and simpler library is required see big.js. It's less than half the size but only works with decimal numbers and only has half the methods. It also does not allow NaN or Infinity, or have the configuration options of this library.

bignumber arbitrary-precision decimal-places bigdecimal arbitrary precision arithmetic big number decimal float biginteger bigint bignum

decimal.js - An arbitrary-precision Decimal type for JavaScript

•    Javascript

---

An arbitrary-precision Decimal type for JavaScript. The library is similar to bignumber.js, but here precision is specified in terms of significant digits rather than decimal places, and all calculations are rounded to the precision (similar to Python's decimal module) rather than just those involving division.

bignumber arbitrary-precision significant-digits trigonometric-functions bigdecimal arbitrary precision arithmetic big number decimal float biginteger bigint bignum

jsbi - JSBI is a pure-JavaScript implementation of the official ECMAScript BigInt proposal.

•    Javascript

---

JSBI is a pure-JavaScript implementation of the official ECMAScript BigInt proposal, which is on track to become a part of the JavaScript language in the near future. Note: explicitly call toString on any JSBI instances when console.log()ing them to see their numeric representation (e.g. String(max) or max.toString()). Without it (e.g. console.log(max)), you’ll instead see the object that represents the value.

bigint polyfill

C++ BigInt class

•    C++

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C++ class BigInt that enables the user to work with arbitrary precision integers.

node-bignum - Big integers for Node.js using OpenSSL

•    Javascript

---

Arbitrary precision integral arithmetic for Node.js using OpenSSL. This library is based on node-bigint by substack, but instead of using libgmp, it uses the builtin bignum functionality provided by OpenSSL. The advantage is that OpenSSL is already part of Node.js, so this library does not add any external dependency whatsoever.

openssl big bignum bigint integer arithmetic precision

proposal-bigint - Arbitrary precision integers in JavaScript

•    HTML

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Thanks for help and feedback on this effort from Brendan Eich, Waldemar Horwat, Jaro Sevcik, Benedikt Meurer, Michael Saboff, Adam Klein, Sarah Groff-Palermo and others. BigInt is a new primitive that provides a way to represent whole numbers larger than 253, which is the largest number Javascript can reliably represent with the Number primitive.

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

node-csvtojson - Blazing fast and Comprehensive CSV Parser for Node.JS / Browser / Command Line.

•    TypeScript

---

Here is a free online csv to json convert service utilizing latest csvtojson module. csvtojson has released version 2.0.0.

csv csvtojson csvparser nodejs csv-data csv-row csv-columns csv-stream parse csv-parser parse-csv json csv-to-json csv-convert tojson convert-csv-to-json csv-json

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

cookie-parser - Parse HTTP request cookies

•    Javascript

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Parse Cookie header and populate req.cookies with an object keyed by the cookie names. Optionally you may enable signed cookie support by passing a secret string, which assigns req.secret so it may be used by other middleware. Parse a cookie value as a JSON cookie. This will return the parsed JSON value if it was a JSON cookie, otherwise it will return the passed value.

expressjs nodejs cookie middleware

json-c - https://github

•    C

---

JSON-C implements a reference counting object model that allows you to easily construct JSON objects in C, output them as JSON formatted strings and parse JSON formatted strings back into the C representation of JSON objects. It aims to conform to RFC 7159. See also the "Installing prerequisites" section below.

json

minimal-json - A fast and small JSON parser and writer for Java

•    Java

---

Minimal-json is fully covered by unit tests, and field-tested by the Eclipse RAP project and others (see below). The JAR contains a valid OSGi bundle manifest and can be used in OSGi environments without modifications. The class Json is the entrypoint to the minimal-json API, use it to parse and to create JSON.

Moshi - A modern JSON library for Android and Java

•    Java

---

Moshi is a modern JSON library for Android and Java. It makes it easy to parse JSON into Java objects. It has has built-in support for reading and writing Java’s core data types like Primitives (int, float, char...), Collections, String, Enum. Moshi uses the same streaming and binding mechanisms as Gson. If you’re a Gson user you’ll find Moshi works similarly.

json-parser json-library json

jquery.terminal - jQuery Terminal Emulator

•    Javascript

---

jQuery Terminal Emulator is a plugin for creating command line interpreters in your applications. It can automatically call JSON-RPC service when a user types commands or you can provide you own function in which you can parse user commands. It's ideal if you want to provide additional functionality for power users. It can also be used to debug your application. You can create an interpreter for your JSON-RPC service with one line of code (just use url as first argument).

json-rpc parse interpreter command cli shell terminal command-line emulator prompt console keyboard type rpc input ui

JSON Toolkit

•    CSharp

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JSON Toolkit is a .NET library written in C# used to parse JSON strings and handle JSON objects at runtime.

deserialize json parser parsing

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

•    Javascript

---

It will replace single-line comments // and multi-line comments /**/ with whitespace. This allows JSON error positions to remain as close as possible to the original source.Also available as a gulp/grunt/broccoli plugin.

json strip remove delete trim comments multiline parse config configuration conf settings util env environment

lave - eval in reverse: stringifying all the stuff that JSON.stringify won't

•    Javascript

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lave is eval in reverse; it does for JavaScript what JSON.stringify does for JSON, turning an arbitrary object in memory into the expression, function, or ES6 module needed to create it. JSON is great data transport, but can only handle a subset of the objects expressible in a JavaScript runtime. This usually results in lossy serializations at best, and TypeError: Converting circular structure to JSON at worst. While we can get around such issues by writing JavaScript code to parse this JSON back into the structures we want, now we have to ship that code out of band, which can be a headache.

stringify uneval circular json serialize

circular-json - JSON does not handle circular references. Now it does

•    Javascript

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Serializes and deserializes otherwise valid JSON objects containing circular references into and from a specialized JSON format. There are no dependencies.

json circular reference recursive recursion parse stringify

LJSON - JSON extended with pure functions.

•    Javascript

---

LJSON is a drop-in replacement for JSON which also allows you to parse and stringify pure functions and their contents. There are good security reasons for functions to be out of the JSON specs, but most of those are only significant when you allow arbitrary, side-effective programs. With pure functions, one is able to interchange code while still being as safe as with regular JSON. See this and more examples on the Examples directory.

json lambda-calculus functional-programming functions