JSPM

fast and safe way to escape and unescape &<>'" chars

JWA, JWS, JWE, JWT, JWK, JWKS for Node.js, Browser, Cloudflare Workers, Deno, Bun, and other Web-interoperable runtimes

A robust HTML entities encoder/decoder with full Unicode support.

Querystringify - Small, simple but powerful query string parser.

Decode named character references

A better decodeURIComponent

micromark utility to decode markdown strings

micromark utility to decode numeric character references

Parse and stringify URL query strings

Fast base encoding / decoding of any given alphabet

Encode and decode HTML entities

Fast and safe decodeURIComponent

Unpack multibyte binary values from buffers

A port of the Brotli compression algorithm as used in WOFF2

protobuf-style varint bytes - use msb to create integer values of varying sizes

Base 58 encoding / decoding

Pure JavaScript pprof encoder and decoder

A straightforward implementation of base58-check encoding

Declaratively encode and decode binary data

Encode/decode DNS-SD TXT record RDATA fields

Text Decoder

A fast Base64 decoder with a low level API. If you want a high level API, look at [base64-js](https://github.com/beatgammit/base64-js).

Bech32 encoding / decoding

Base64 streaming encoder and decoder

Add or remove backslashes (escape or unescape).

Performant JPEG decoder

Declaratively encode and decode binary data

Convert raw escape sequences to their respective characters (undo String.raw).

Contains new Node.js v0.10 style stream classes for encoding / decoding Base64 data

Bitcoin Wallet Import Format (WIF) decoding/encoding module

TypeScript port of ZXing multi-format 1D/2D barcode image processing library.

A library for simplifying encoding and decoding URL query parameters.

Decodes complex FormData into a JavaScript object

A simple Base32 encode / decode function for JavaScript supports UTF-8 encoding.

JWT(JSON Web Token) encode and decode module

A robust & character encoding–agnostic JavaScript implementation of the `Quoted-Printable` content transfer encoding as defined by RFC 2045.

Reads the pixels of an image as an ndarray

encode/decode value as bitcoin OP_PUSHDATA integer

Parse and stringify file paths with line and column like `unicorn.js:8:14`

Generate YouTube-like ids from numbers. Use Hashids when you do not want to expose your database ids to the user.

ZXing for JS's browser layer.

Base64 encoding and decoding helping util. Created for React Native but can be used anywhere

LEB128 utilities for Node

Node.js implementation of the Unix program uuencode.

Pruned version of the 'get-pixels' package by Mikola Lysenko (only node.js and local fs files)

Decode HEIC images to raw data

Wrapped version of http://www.strictly-software.com/htmlencode

Simple cross Node.js inteface for using brotli compression

A light weight universal JavaScript base58 encoder / decoder.

Fast base encoding / decoding of any given alphabet

Decode audio data in node or browser

High performance WAV file decoder and encoder

Embed data in other data and easily extract it when needed

Module for serializing and unserializing SocketCluster messages

node.js library for encoding, decoding, and verifying JSON Web Tokens (JWTs)

Create, read and write wav files according to the specs.

Protocol Buffers for Node.js

string contains methods that aren't included in the vanilla JavaScript string such as escaping html, decoding html entities, stripping tags, etc.

Base32 encoding / decoding of bitcoin cash addresses

Library for encoding ECDSA private keys to PEM, DER and raw hex formats

Text encoder and decoder

decode html entities

A simple HTML encode / decode function for JavaScript.

Tiny, browser-compatible mongo id shortener

node.js library for encoding, decoding, and verifying JSON Web Tokens (JWTs)

PASETO for Node.js with no dependencies

promise-based wav decoder

Safely decode URI components, leaving invalid sequences as they are

Render a gif and provide frames to draw.

Declarative binary data encoder / decoder.

Encoding/Decoding to/from JSON/CBOR/MsgPack

Decode the frames of a gif.

Parse and stringify URL query strings

Encode / decode Google's polyline format

Blazing-fast binary parser builder

Nodejs and Javascript library for decoding data params and events from ethereum transactions"

A-Law and mu-Law codecs in JavaScript.

Type-safe data decoding for the minimalist.

Base58 encoding & decoding for Node.js & web agent windows.

Declarative binary data encoder / decoder.

Download images from remote URLs and encode/decode them to base64

Convert base64 strings into human-friendly words

Yet another node.js struct implementation (object↔︎buffer conversion)

Check to see if a token is expired using only the token itself without a secret key or validation

encode/decode value as bitcoin OP_PUSHDATA integer

Encode and decode [WTF-8](https://simonsapin.github.io/wtf-8/) with a similar API to [TextEncoder](https://developer.mozilla.org/en-US/docs/Web/API/TextEncoder) and [TextDecoder](https://developer.mozilla.org/en-US/docs/Web/API/TextDecoder).

Blazing-fast binary parser builder

Reads the pixels of an image as an ndarray

A minimalistic MessagePack encoder and decoder for JavaScript.

Simple, functional big number library for up to 256-bit (32-byte) numbers that outputs decimal strings, with hex, binary, octal, and Buffer decoding/encoding.

btoa and atob (ie base64/base64url encoding and decoding) support for node.js or old browsers, with the Unicode Problems fixed

A safe Uint8Array to base64 string converter

Fast function for decoding HTML entities.

Base85 (Ascii85) encode and decode functionality

Hex encode & decode string

Read pixel data from any image source

An AAC decoder for Aurora.js

Encodes a number to a letter representation, or decodes it back

Decode url

A compilation of the libraries associated with handling audio and video in ffmpeg—libavformat, libavcodec, libavfilter, libavutil and libswresample—for WebAssembly and asm.js, and thus the web.

Snowflake ID is a unique identifier commonly used in distributed systems to generate unique IDs with a timestamp component. It is designed to ensure uniqueness, even in distributed and highly concurrent environments.

Store state in URL as in object, types and structure are preserved, with TS validation. Same API as React.useState, wthout any hasssle or boilerplate. Next.js@14-15, react-router@6-7, and remix@2.

An MP3 decoder for Aurora.js

Convert Base64 to Blob/File and Blob/File to Base64.

Decode unknown values into well-typed Typescript ones

A module to encode and decode IEEE 754 floating point numbers.

An Apple Lossless decoder for Aurora.js

Legacy package to normalize an URI

A modern base-x encoding library implemented in TypeScript with minimal dependencies for use in browser and Node.js.

Environment agnostic entity decoder

JSON encode and decode functions for node-sass.

FLAC data stream encoder and decoder compiled in JavaScript using emscripten.

Decode, sign/resign or verify JSON Web Tokens (JWT). Works in majority of modern browsers, Node.js and other JavaScript runtimes.

Encode or decode base64 strings - including cli

Encode and decode unsigned integers to and from byte buffers.

Node.js native bindings to FFmpeg.

IMA ADPCM codec in JavaScript.

Reads the pixels of an image as an ndarray

Arbitrary base-n conversions w/ presets for base8/16/32/36/58/62/64/83/85, support for bigints and encoding/decoding of byte arrays

Generate ids from numbers

Simple Node Js Package For Encode Decode A Given String

A robust HTML entities encoder/decoder with full Unicode support.

Encoding/decoding library for the IATA Bar Coded Boarding Pass

Parse and stringify URL query strings - this version is transpiled with babel, and minor manual changes regarding dependecy package for es5 compability.

A basic library for working with Tapscript, signatures and Bitcoin transactions.

Encodes text and binary data to a subset of Unicode plane 1 (BMP). Runs in browser and Node.js. Character compression. Makes binary data copy-pastable. URL-safe.

Blech32 encoding / decoding

2D motion graphics and video rendering engine

A tiny function for decoding base64 strings into Uint8Arrays, useful for bundling and loading WASM modules.

Decode and verify JWT tokens issued by AWS Cognito.

Encode and decode two's complement integers to and from byte buffers.

A straightforward implementation of base58-check encoding

Brotli compression/decompression that encodes to base-unicode and back. Node.js and Browser support.

Guess structure of protobuf binary from raw data

Typescript + ESM version of punycode.js

Base 58 encoding / decoding

Minimal utility for decoding JWT claims

Decode audio files using FFmpeg and WebAssembly

A C++ module for node-js that does base64 encoding and decoding.

A minimal yet complete MessagePack implementation for JavaScript

Reads the pixels of an image as an ndarray

Base64 encoding and decoding with ASCII string representation.

check JWT is expired or not.

A library to decode google map polyline using google official library.

Non-blocking chunked Base64 encoding

🖼A full-featured PNG decoder and encoder.

base64 encode/decode methods in nodejs

compressor and decompressor for Brotli

save file with charset/encoding/iconv

Mini Game Standard Development Library.

Internet Printing Protocol (IPP) encoder and decoder

decode/encode git style utf8

Blazing-fast binary parser builder

parse Pdf417 barcode data from US driver licenses

fast MP4 mux / demux using WASM

Convert react-router-dom this.props.location.search string to an object

Declaratively encode and decode binary data

Compression codec for uuid to d64 (22 bytes)

Base64 encoding and decoding for both browser and node, with binary file support.

A safe Uint8Array to utf-16 string converter

A robust & character encoding–agnostic JavaScript implementation of the `Q` encoding as defined by RFC 2047.

Reads the pixels of an image as an ndarray

A simple base32hex encode & decode library.

Lightweight Pure JS character encoding conversion for CP932, Shift_JIS, Windows-31J, IBM 932

Binary data related transducers & reducers

Grants safe passage to your domain.

Play/Stream/Record PCM audio data & Encode/Decode Opus to PCM audio data

Encode / decode any base X to and from string or buffer

Encrypt and decrypt in Node and Bash

a faster varint

Convert Buffers to/from PEM strings, and read/write SSH/RSA key files. supports DEK encryption.

Library for decoding VIN number

Lightweight utility for decoding function parameters from Ethereum transactions.

Decode HTML entities the browser-friendly way

A library for lexicographical encoding.

It's exactly like html-escaper but it doesn't throw with null/undefined

Base 58 encoding / decoding

A port of the Brotli compression algorithm as used in WOFF2

Encode/decode UTF8.

Typescript library for decoding data params and events from ethereum transactions"

The Cyber Swiss Army Knife for encryption, encoding, compression and data analysis.

Encode and decode data to string using mustache-like template strings

Nodejs and Typescript library for decoding data params and events from ethereum transactions

Decode/encode a docker raw stream

LoRa packet decoder/encoder

A compilation of the libraries associated with handling audio and video in ffmpeg—libavformat, libavcodec, libavfilter, libavutil and libswresample—for WebAssembly and asm.js, and thus the web. This package includes only one variant.

querystringify with typescript

Nodejs Base 58 encoding / decoding

Encode/decode to a custom binary format, much more compact and faster than JSON/BSON

A compilation of the libraries associated with handling audio and video in ffmpeg—libavformat, libavcodec, libavfilter, libavutil and libswresample—for WebAssembly and asm.js, and thus the web. This package includes only one variant.

A tool for generating short ids like Youtube, Bitly and Imgur

Base62 encoder/decoder

Encode/decode hex and base64 at speed

The library converts a buffer containing a XML serialized to a string, detecting the proper encoding

Encode and decode ZPL images

Package for encoding / decoding images, transforming images, applying filters, drawing primitives on images on the client side (no need for server Node.js)

Z-order curve / Morton encoding, decoding & range extraction for arbitrary dimensions

A straightforward implementation of base58-check encoding for smartcash

Encode and decode firebase key string to escape and unescape unsafe characters (.$[]#/).

Encoder/Decoder of various algorithm

Node.js native bindings to FFmpeg.

*I deal with the goddamn objects so JSON doesn’t have to!! I have object skills!!*

A library to encode and decode JSON into entity classes

Quite-OK Image format encoder/decoder in vanilla javascript

Drop-in replacement for AudioContext. Overrides decodeAudioData and provides Ogg Vorbis decoding, calling super.decodeAudioData for non-vorbis.

Node.js native binding to libogg

Encode your objects into simple string hashes that you can then pass around. Then decode them back with ease.

Fast and simple way to parse and stringify URL query strings

A simple decoder/encoder for morse code written in javascript

A simple Base64 encode / decode function for JavaScript supports UTF-8 encoding.

Convert/auto-detection Character encodings in JavaScript ( iconv-lite, jschardet )

Simplify encoding & decoding CSV

Webpack v4 compatible version of panva/jose v3.x

string encode/decode

Simple XOR and base_64 encryption decryption for react-native

Package for parsing and encoding a plist file

Middleware to transform query strings in a format that is recognized by the MongoDB, MySQL and other databases...

base64 encoded decode functions

Glitched, text writing module. Highly customizable settings. Decoding, decrypting, scrambling, or simply spelling out text.

A compilation of the libraries associated with handling audio and video in ffmpeg—libavformat, libavcodec, libavfilter, libavutil and libswresample—for WebAssembly and asm.js, and thus the web. This package includes only one variant.

Caching Loader (with optional decode) audio files to be used with WebAudio

A wrapper around the built-in `crypto` module that makes encryption easy in Node.js.

Command line interface for advanced base 64 encoding/decoding

abstract error class with error code supports to create error class quickly

A library for handling strings in smart ways, including manipulation and encoding, with TypeScript support.

encode/decode value as bitcoin OP_PUSHDATA integer

A simple email parser

Encode & decode strings, bytes, and integers to Base62

Library for converting numbers from one radix representation (encoding) to another, with optional custom defined encodings. Inspired by rubyworks/radix.

WebPXMux.js ======

A streaming PNG encoder and decoder

TypeScript port of ZXing multi-format 1D/2D barcode image processing library.

JavaScript Deobfuscator and Unpacker

JPEG-image decoding, encoding & EXIF reading library for browser and node.js

NodeJS native bindings to libmp3lame & libmpg123.

A straightforward implementation of base58-check encoding

URLVariables class for TypeScript

Parse and stringify URL query strings

a proxy JSDOM URL object

A general purpose CAN (Controller Area Network) toolbox with support for .dbc file parsing, CAN message decoding, and more

Parse and stringify URL query strings

fast source mapping decode/encode

Convert a buffer to and from png image data.

Decompress with NRV2E algorithm

Vue.js Single File Component. Wrapper for Glitched Writer: text-writing js module.

A compilation of the libraries associated with handling audio and video in ffmpeg—libavformat, libavcodec, libavfilter, libavutil and libswresample—for WebAssembly and asm.js, and thus the web. This package includes only the types.

🗄️ React hooks for accessing localStorage and sessionStorage, with syncing and prefix support. The complete package.

Parse and stringify URL query strings

Hexadecimal utilities

Lightweight utility for decoding function parameters and function output from Tron blocklchain transactions.