JSPM

Small package to encode or decode IP addresses from buffers to strings.

A robust base64 encoder/decoder that is fully compatible with `atob()` and `btoa()`, written in JavaScript.

A pure javascript JPEG encoder and decoder

Decode audio data in node or browser

Snappy codec for KafkaJS

Lightweight tiff decoder

Module for serializing and unserializing SocketCluster messages

Check details of an mp4 file, e.g. to determine if transcoding is required

A JSON decoding library for Typescript

utf8 to/from bytes codec (esm/cjs)

LZ4 compression codec for the KafkaJS library

A robust windows-1252 encoder/decoder written in JavaScript.

base64 to/from bytes codec (esm/cjs)

A-Law and mu-Law codecs in JavaScript.

Encoding/Decoding to/from JSON/CBOR/MsgPack

Convert and discover properties of CIDs

A robust iso-8859-2 encoder/decoder written in JavaScript.

A robust windows-1255 encoder/decoder written in JavaScript.

A robust iso-8859-8 encoder/decoder written in JavaScript.

A robust macintosh encoder/decoder written in JavaScript.

A robust windows-1251 encoder/decoder written in JavaScript.

A robust windows-1250 encoder/decoder written in JavaScript.

snappy decompressor for wasm

A robust windows-1258 encoder/decoder written in JavaScript.

A robust iso-8859-7 encoder/decoder written in JavaScript.

A robust iso-8859-6 encoder/decoder written in JavaScript.

Support as many legacy encodings as possible

A robust windows-874 encoder/decoder written in JavaScript.

A robust iso-8859-15 encoder/decoder written in JavaScript.

WebAssembly media player using Ogg/Vorbis/Theora/Opus/WebM libs compiled with Emscripten

A robust windows-1256 encoder/decoder written in JavaScript.

A robust windows-1253 encoder/decoder written in JavaScript.

A robust iso-8859-8-i encoder/decoder written in JavaScript.

Ascii85 (a.k.a. base85) encoding/decoding.

A robust iso-8859-3 encoder/decoder written in JavaScript.

A robust windows-1257 encoder/decoder written in JavaScript.

A robust windows-1254 encoder/decoder written in JavaScript.

A robust koi8-r encoder/decoder written in JavaScript.

A robust x-mac-cyrillic encoder/decoder written in JavaScript.

A robust iso-8859-4 encoder/decoder written in JavaScript.

A robust iso-8859-5 encoder/decoder written in JavaScript.

LZ4 streaming compression and decompression library for KafkaJS

ucanto core

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

Minimalistic yet feature-rich IO decoding and encoding

UCAN RPC Client

ucanto transport

Snappy codec for kafkajs in typescript

UCAN codec for IPLD

IMA ADPCM codec in JavaScript.

Oxipng image encoder in WebAssembly

A minimal yet complete MessagePack implementation for JavaScript

Codec to encrypt any javascript value into a JsonWebEncryption (JWE)

Encode and Decode an XRPL account address and destination tag to/from X-formatted (tagged) address

A library for lexicographical encoding.

LZ4 compression codec for the KafkaJS library

Compression codec for uuid to d64 (22 bytes)

Detect audio and video features in browser

Pure JS Kafka LZ4 codec for kafkajs

Convert a webm video to mp4.

Encodes and decodes AVIF images using WebAssembly

MozJPEG image encoder in WebAssembly

MP3 encoder extension for Mediabunny, based on LAME.

Gifsicle codec in WebAssembly.

An ATRAC1 audio codec implementation in JS

Useful JS utilities.

type-safe base45 encoder and decoder

A streaming JPEG encoder and decoder

Defines base types and interfaces

adeunis codecs source

A streaming PNG encoder and decoder

An Ogg demuxer for aurora.js

encode decode base58 SWTC identifiers

A Vorbis audio decoder for aurora.js ported using emscripten

Tencent silk encoder for Node.js and browser

encode decode base58 SWTC identifiers

'codecs' compatible base32-encode and base32-decode adapter.

A pure javascript JPEG encoder and decoder

Checks if a codec is supported by WebRTC stack in browser

Z85 - ZeroMQ's ascii85 encoding format

A library for defining codecs that can safely translate between runtime and over-the-wire types, helping you build more robust systems in TypeScript.

A module for statically defining type-safe HTTP operations. These can be leveraged by other modules to build type-safe clients or servers that can execute the requests.

Minimal binary codec for SC based on MessagePack

atproto timestamp identifier identifier codec library

A library for making type-safe HTTP requests built on the popular Axios client.

Library for decoding and encoding bencode data

io-ts types for making parsers

wav-blob-util is a utility library that converts audio blobs to the Wave format with clamping samples onto the 16-bit resolution.

Real-Time GPU Texture Codecs for the Web

io-ts datetime types with luxon

Incremental I/O; functional parsers and writers; display, debug, and diagnostic formatters; and Unicode and binary codecs

Full native ffmpeg bindings for Node.js with Streams support

Includes parser, serializer & generated typings

Encode a string into a phonetic code with the Double Metaphone algorithm

Runtime for compiled result from @scale-codec/definition-compiler

This plugin for [graphql code generator](https://graphql-code-generator.com) generates types and runtime codecs for a given GraphQL Schema using [io-ts](https://github.com/gcanti/io-ts) to give runtime type safety.

Low-level tools to perform serialization and deserialization via SCALE spec

Decoding library for Atim products

Codec errors for JavaScript

Msgpack codec for delta-crdts

Native G.711 µ-law decoder for Node.js. Optimized C++/N‑API binding for minimal overhead and maximum throughput.

A robust iso-8859-2 encoder/decoder written in JavaScript.

Gifsicle codec in WebAssembly.

A robust windows-1252 encoder/decoder written in JavaScript.

ASCII encoder/decoder for JavaScript

Node-API bindings for SpanDSP G.722 (encode/decode) with ESM+CJS loaders.

Minimal Protocol Buffers wire encoding/decoding

Loads and resizes images using WebAssembly

A MozJPEG encoder in WebAssembly

A comprehensive, type-safe data encoding, serialization, and utility library for JavaScript and TypeScript

AIS Codec for Masohi Codec

jsZ85 provides an implementation of the Z85 codec following the specs of https://rfc.zeromq.org/spec/32/. It is a port of the https://github.com/ruben-viscomi/ktZ85 implementation for Kotlin.

Encodes and decodes WebP images using WebAssembly

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

Codecs for Masohi Messaging

BigInt base62 codec

Download a Chromium all-codecs+ woolyss binary

XSalsa20 Poly1305 codec that implements the abstract-encoding interface.

Spacemesh Transaction Codec library

Minimal Protocol Buffers wire encoding/decoding

Angular directives for HTML5 audio/video media events

XSalsa20 codec that implements tha abstract-encoding interface.

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Encode and decode your Temporal data

Remove a codec from a Session Description.

The abstract codec class to encode/decode buffer/string.

Motion Twin Codec port in JS

An Opus audio decoder for aurora.js ported using emscripten

String serialization of arbitrarily complex structures that sort bytewise.

TypeScript library offering robust contracts for encoding and decoding values with strong type safety.

Base16 encoder/decoder for JavaScript

A robust iso-8859-10 encoder/decoder written in JavaScript.

Convert between JavaScript UCS-2-encoded strings and OCaml-friendly UTF-8 byte-arrays

Download a Chromium all-codecs+ woolyss binary

A library for decoding JSON in JS

Encoder and Decoder for gitfile streams for js-git.

A robust ibm866 encoder/decoder written in JavaScript.

A robust iso-8859-13 encoder/decoder written in JavaScript.

Get metadata of audio files from disk or URLS

Node-RED node for adeunis-codecs v1.7.x library

ascii - ebcdic conversion module

A pure javascript JPEG encoder and decoder

A robust iso-8859-14 encoder/decoder written in JavaScript.

'probably' => 2, 'maybe' => 1, '' => 0

Decode audio data in node or browser

A JavaScript implementation of the 8b10b line codec

Codec engine typescript definitions

Cartesi Machine Input/Output Codec

Utils functions for Thrift TypeScript

Agence Javascript Library

Compression codec for uuid to base91 in less than 20 bytes

Encode and decode big endian unsigned 64-bit integers from and to ByteArrays

this package uses android media codec api (android only) to transcode videos with hardware accleration

Codec for encode/decode JSON objects with buffer keys

Convert a webm video to mp4.

Codec UI Polymer implementation

Check if the given audio format is supported on the browser, and return the compatibility level as a number

PCAP RTP Payload extraction using WASM Libpcap

A robust windows-1251 encoder/decoder written in JavaScript.

Okaily-Srivastava-Tbakhi (OST) encoding algorithm for textual data compression, optimized for JavaScript/TypeScript and ZenithKernel bundles

A picture is worth a thousand words... Literally! Encoding and transfer data through images

Zero dependencies, small, fast, vanilla TypeScript object serializer with very compact binary format that is also quite compressible via lz4 and deflate

A robust koi8-u encoder/decoder written in JavaScript.

A base64 implementation compiled to WASM format

Runtime codec implementation for ZenithKernel framework

A pkt-line codec packaged as a min-stream push-filter.

An alternative encoding/decoding scheme for IOTA trytes supporting UTF-8 and JSON

A robust windows-1251 encoder/decoder written in JavaScript.

codecs compatible de-/encoder for bigints.

For checking video codecs and then use in video.canPlayType()

Codec Engine Kernel Runtime

A streaming JPEG encoder and decoder

Module for serializing and unserializing SocketMesh messages.

Z85 encoding/decoding

A simple tool for converting IP address to ascii string.

Pure JS Kafka LZ4 codec for kafkajs

High-throughput JPEG 2000 (Rec. ITU-T T.814 | ISO/IEC 15444-15) decoder

Argo is a compact and compressible binary serialization format for GraphQL. This is the reference implementation.

Micropackage: convert between a NodeJS Buffer and a base64-encoded string with optional URL-safe alphabet, padding, and MultiBase prefix.

A steganographic encoder and decoder built on top of a jpeg library.

Transform arbitrary object structures (json superset) in to JsonML/PigeonMark and back again, allowing arbitrary data to be passed through XML tools

Legible Encoding for Addressable Packets

8-bit, structured, binary message codec

A robust iso-8859-16 encoder/decoder written in JavaScript.

Bindings for Valve's LZSS compression codec

commandline interface for mplayer that manages movie files

Common Database for Bajo Framework

Codecs for purescript argonaut

Check if a Buffer/Uint8Array is an OPUS audio file

A collection of io-ts codecs for the immutable collections from immutable-js

A `zstandard` codec for `avsc`

'codecs' compatible msgpack adapter.

MozJPEG image encoder in WebAssembly

A protocol-based binary codec that can encode and decode objects, strings, and numbers to and from binary format

JavaScript Opus (audio format) Encoder (front-end package only)

A robust windows-1251 encoder/decoder written in JavaScript.

silk codec bindings for Node.js

CLI to encode/decode common formats such as JWT, Base64, Hex, ASCII, Binary

TypeScript library providing a set of contracts for encoding and decoding values in a strongly-typed way.

Utility for encoding and decoding PEM ascii-armoured data streams

Oxipng image encoder in WebAssembly

The core package to create a schema object to encode/decode your JSON in to a compact byte buffer with no overhead.

Javascript video codec for the browser

Read and Write Life-Like Cellular Automata Files

encodes/decodes base58 Bizain identifiers

Axon msgpack codec

PDU builder/parser

JSend utility codecs for use with the io-ts library

Simple and extensible JavaScript value validator and transformer.

X flexible Configurations for Nodejs

A git http platform implementation that sits on top of a tcp connection

X11 Properties Coder / Encoder

Simple ffmpeg API for nodejs

A simple CLI tool to get a video's MIME string including relevant codes for use with MediaSource Extension.

add the encoding ability to abstract-nosql database.

Gifsicle codec in WebAssembly.

A Fastify plugin that serves a Temporal.io PayloadCodec over HTTP.

Module for serializing and deserializing Zation messages

pipe segment codec

LZ4 compression codec for JS.

TypeScript implementation of the JAM codec

Self-Delimiting Numeric Value Codec

Minimal binary codec for SocketCluster based on pbf

Cartesi Machine Input/Output Codec CLI

Codec creator for flat objects with all properties and possible values known in advance.

YouTube Audio Downloader

An interface for (de)encoding a wide range of multicodecs simultaneously

Kim is a very simple encoding that delivers 7 bits per byte

Codec for validator presets

A JavaScript codec aimed at both browser and nodejs

A nodejs module to read YUV video file and convert it to different formats.

NMEA Decoder/Encoder

Codecs for encoding arbitrary state trees into URL parameters and back again.

A varint implementation compiled to WASM format

Stream implementation of a protobuf message encoder/decoder.

Encodes/Decodes WebCrypto keys efficiently and easily into `Uint8Array`s. Good when you want to safe space (QR Codes).

Snappy codec for snappy-cache

Encodes and decodes bytes to a zero width space string.

Opus codec ported with emscripten, supports PCM in 32-bits Float format. Useful for Web Audio AudioWorkletProcessor

Convert a string to utf8 character array in integers.

Escaped Base64 codec

A varint implementation compiled to WASM format

ipfs protobuf codec

A pure javascript JPEG encoder and decoder

Convert and discover properties of CIDs

Coders and decoders for ENS fields

A simple encoding and decoding library for celestial messages.

Encode stream data as SDNVs.

An io-ts decoder combinator that adapts a decoder to receive a flattened environment variable object.

Scope a pipe-segment-codec.