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.

A better decodeURIComponent

Decode named character references

Parse and stringify URL query strings

micromark utility to decode numeric character references

micromark utility to decode markdown strings

Fast base encoding / decoding of any given alphabet

Fast and safe decodeURIComponent

Encode and decode HTML entities

Base 58 encoding / decoding

A port of the Brotli compression algorithm as used in WOFF2

Unpack multibyte binary values from buffers

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

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

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).

Declaratively encode and decode binary data

Performant JPEG decoder

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

Text Decoder

JWT(JSON Web Token) encode and decode module

A library for simplifying encoding and decoding URL query parameters.

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

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

Decodes complex FormData into a JavaScript object

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

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

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

Reads the pixels of an image as an ndarray

Node.js implementation of the Unix program uuencode.

Simple cross Node.js inteface for using brotli compression

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

ZXing for JS's browser layer.

Decode audio data in node or browser

LEB128 utilities for Node

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

encode/decode value as bitcoin OP_PUSHDATA integer

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

High performance WAV file decoder and encoder

Decode HEIC images to raw data

Fast base encoding / decoding of any given alphabet

A light weight universal JavaScript base58 encoder / decoder.

Module for serializing and unserializing SocketCluster messages

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

Base32 encoding / decoding of bitcoin cash addresses

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

Embed data in other data and easily extract it when needed

Protocol Buffers for Node.js

Text encoder and decoder

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

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

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

Safely decode URI components, leaving invalid sequences as they are

promise-based wav decoder

Blazing-fast binary parser builder

Encoding/Decoding to/from JSON/CBOR/MsgPack

Parse and stringify URL query strings

Encode / decode Google's polyline format

Decode the frames of a gif.

Render a gif and provide frames to draw.

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

A minimalistic MessagePack encoder and decoder for JavaScript.

A-Law and mu-Law codecs in JavaScript.

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

Type-safe data decoding for the minimalist.

Declarative binary data encoder / decoder.

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

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

Convert base64 strings into human-friendly words

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.

encode/decode value as bitcoin OP_PUSHDATA integer

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.

Reads the pixels of an image as an ndarray

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).

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

Blazing-fast binary parser builder

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

An AAC decoder for Aurora.js

Declarative binary data encoder / decoder.

Base85 (Ascii85) encode and decode functionality

Hex encode & decode string

Read pixel data from any image source

Decode url

An MP3 decoder for Aurora.js

An Apple Lossless decoder for Aurora.js

Node.js native bindings to FFmpeg.

Legacy package to normalize an URI

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.

A safe Uint8Array to base64 string converter

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

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

Generate ids from numbers

Reads the pixels of an image as an ndarray

JSON encode and decode functions for node-sass.

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.

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

Fast function for decoding HTML entities.

Encode or decode base64 strings - including cli

Decode and verify JWT tokens issued by AWS Cognito.

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

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

Base 58 encoding / decoding

A straightforward implementation of base58-check encoding

Encode and decode unsigned integers to and from byte buffers.

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

Environment agnostic entity decoder

Simple Node Js Package For Encode Decode A Given String

A port of the Brotli compression algorithm as used in WOFF2

Minimal utility for decoding JWT claims

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

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.

IMA ADPCM codec in JavaScript.

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

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

Decode unknown values into well-typed Typescript ones

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

Reads the pixels of an image as an ndarray

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

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

a faster varint

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

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

Internet Printing Protocol (IPP) encoder and decoder

Encoding/decoding library for the IATA Bar Coded Boarding Pass

Base64 encoding and decoding with ASCII string representation.

Decode audio files using FFmpeg and WebAssembly

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

A minimal yet complete MessagePack implementation for JavaScript

check JWT is expired or not.

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

decode/encode git style utf8

Blech32 encoding / decoding

🖼A full-featured PNG decoder and encoder.

Non-blocking chunked Base64 encoding

parse Pdf417 barcode data from US driver licenses

base64 encode/decode methods in nodejs

compressor and decompressor for Brotli

2D motion graphics and video rendering engine

A library for lexicographical encoding.

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

Mini Game Standard Development Library.

Grants safe passage to your domain.

A simple base32hex encode & decode library.

Guess structure of protobuf binary from raw data

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

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

Reads the pixels of an image as an ndarray

A safe Uint8Array to utf-16 string converter

Library for decoding VIN number

Declaratively encode and decode binary data

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

Quite-OK Image format encoder/decoder in vanilla javascript

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

Base 58 encoding / decoding

Encode/decode UTF8.

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.

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

Compression codec for uuid to d64 (22 bytes)

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.

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

Lightweight utility for decoding function parameters from Ethereum transactions.

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

Encode/decode hex and base64 at speed

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

Decode/encode a docker raw stream

Fast and simple way to parse and stringify URL query strings

Binary data related transducers & reducers

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

Decode HTML entities the browser-friendly way

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

Nodejs Base 58 encoding / decoding

Typescript + ESM version of punycode.js

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

Base62 encoder/decoder

Encode and decode ZPL images

Encrypt and decrypt in Node and Bash

Base64 encoding and decoding for ArrayBuffer

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

Encode & decode strings, bytes, and integers to Base62

A simple decoder/encoder for morse code written in javascript

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

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

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

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

A JavaScript library that can convert any kind of data into binary that can be restored

querystringify with typescript

Node.js native bindings to FFmpeg.

LoRa packet decoder/encoder

fast MP4 mux / demux using WASM

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

Blazing-fast binary parser builder

n8n node to encode text to base64 and decode base64 to text

string encode/decode

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

Encoder/Decoder of various algorithm

Convert a buffer to and from png image data.

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

Package for parsing and encoding a plist file

Command line interface for advanced base 64 encoding/decoding

Simplify encoding & decoding CSV

A modern base58-check encoding library implemented in TypeScript with minimal dependencies for use in browser and Node.js.

NodeJS native bindings to libmp3lame & libmpg123.

Fast function for decoding HTML entities.

A straightforward implementation of base58-check encoding for smartcash

A simple email parser

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

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

Simple XOR and base_64 encryption decryption for react-native

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.

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

Parse and stringify URL query strings

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

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

CLI utility to decode JWTs

encode/decode value as bitcoin OP_PUSHDATA integer

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.

An abstract-encoding compatible JSON encoder/decoder that properly encodes/decodes buffers.

Decompress with NRV2E algorithm

Fast and efficient number conversion library for arbitrary radix 64 alphabets.

A streaming PNG encoder and decoder

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

Parse and stringify URL query strings

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

Library for parsing JSON Web Tokens (JWT)

Webpack v4 compatible version of panva/jose v3.x

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

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

Library for encoding and decoding binary data.

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

Decode Polish Vehicle Registration Certificate Aztec 2D barcode data

Decode/encode Tus Upload-Metadata strings

Parse and stringify URL query strings

A zero dependency base64 encoder and decoder for Node.js

A minimal yet powerful wrapper around ffmpeg and ffprobe

Node.js native bindings to FFmpeg.