Decoder Packages

WebAssembly port of Base58

WebAssembly port of Base64 and Base64URL

Next-gen Ethereum library for TypeScript

Zero-copy X.509 certificates in pure modern TypeScript

Fastest GIF decoder / encoder. using TypeScript.

Stream implementation of a protobuf message encoder/decoder.

A pure JavaScript implementation of a BPE tokenizer (Encoder/Decoder) for GPT-2 / GPT-3 / GPT-4 / Claude Instant / Claude 2

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

Lightweight utilities for encoding and decoding Solidity ABI

Decode a 1D or 2D barcode/qrcode from an image

MPEG1 Video & MP2 Audio Decoder in JavaScript

Native binding for minimp3

Wasm Quite Ok Image Format (qoi) encoder and decoder supporting the browser. Repackaged from Squoosh App.

A SIMPLE qr-code scanner, that works and is simple to use. It will open the camera and wait for a match.

BJSON: binary JSON for node.js (encoder/decoder)

Promise based tokenizer for a ReadableStream

a transcoder for serialising JavaScript BigInt values to a Uint8Array or any other array-like object

Emscripten distribution of libheif for Node.JS and the browser

Encode & decode strings, bytes, and integers to Base62

Transaction metadata decoder