Fast base encoding / decoding of any given alphabet

Encode data with built-in or custom encodings

Entity parser for XML, HTML, External entites with security and NCR control

mdast utility to parse markdown

Isomorphic Utils

asn1js is a pure JavaScript library implementing this standard. ASN.1 is the basis of all X.509 related data structures and numerous other protocols used on the web

Solidity coder for non-standard (tight) packing.

Postgres bytea parser

An implementation of the WHATWG URL Standard's URL API and parsing machinery

Encrypted Content-Encoding for HTTP

Hashing made simple. Get the hash of a buffer/string/stream/file.

UTF-8 only polyfill for the Encoding Living Standard's API.

socket.io protocol parser

Is this value negative zero? === will lie to you

Generate hashes from javascript objects in node and the browser.

Encoding and decoding for base64, base32, base16, and friends

Character encoding auto-detection in JavaScript (port of python's chardet)

Charset Detector - Detect the encoding and language of text files - Use it in the browser, with Node.js, or via CLI

_(inspired by [tiktoken-node](https://github.com/ceifa/tiktoken-node))_

Base64 encoding/decoding in pure JS