securexandra/cyberchef

Provides polyfills necessary for a full ES2015+ environment

A JavaScript implementation of the Lempel-Ziv-Markov (LZMA) chain compression algorithm, ready to be used as an ES6 package

A pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module.

Argon2 library compiled for browser runtime

arrive.js provides events to watch for DOM elements creation and removal. It makes use of Mutation Observers internally.

Avro for JavaScript

Optimized bcrypt in plain JavaScript with zero dependencies, with TypeScript support. Compatible to 'bcrypt'.

A library for arbitrary-precision decimal and non-decimal arithmetic

Pure Javascript implementation of the BLAKE2b and BLAKE2s hash functions

The most popular front-end framework for developing responsive, mobile first projects on the web.

Bootstrap Colorpicker is a modular color picker plugin for Bootstrap 4.

Material Design for Bootstrap 4

Full zlib module for the browser

Node.js Buffer API, for the browser

characteristic functions for chi-squared distributions

pure-JS library to handle codepages

Hashing and encrypting library with no depedencies

implementation of crypto for the browser

JavaScript library of crypto standards.

JavaScript's library for calculating context triggered piecewise hash(CTPH) also called fuzzy hashing.

Data-Driven Documents

Group two-dimensional points into hexagonal bins.

A JavaScript text diff implementation.

DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It's written in JavaScript and works in all modern browsers (Safari, Opera (15+), Internet Explorer (10+), Firefox and Chrome - as well as almost anything else using Blink or WebKit). DOMPurify is written by security people who have vast background in web attacks and XSS. Fear not.

ECMAScript code generator

ECMAScript parsing infrastructure for multipurpose analysis

A javascript library to extract Exif metadata from images, in node and in the browser.

An HTML5 saveAs() FileSaver implementation

Take a nested Javascript object and flatten it, or unflatten an object with delimited keys

Libraries of geodesy functions

Handlebars provides the power necessary to let you build semantic templates effectively with no frustration

Lightning fast hash functions for browsers and Node.js using hand-tuned WebAssembly binaries (MD4, MD5, SHA-1, SHA-2, SHA-3, Keccak, BLAKE2, BLAKE3, PBKDF2, Argon2, bcrypt, scrypt, Adler-32, CRC32, CRC32C, RIPEMD-160, HMAC, xxHash, SM3, Whirlpool)

Syntax highlighting with language autodetection.

Read/write IEEE754 floating point numbers from/to a Buffer or array-like object

a hack that makes jq run in the browser with emscripten.

JavaScript library for DOM operations

A simple SHA-3 / Keccak / Shake hash function for JavaScript supports UTF-8 encoding.

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

JSON for Humans

JSON query and transformation language

A JS implementation of JSONPath with some additional operators

JSON Web Token implementation (symmetric and asymmetric)

A pure javascript QR code reading library that takes in raw images and will locate, extract and parse any QR code found within.