The fastest JavaScript BPE Tokenizer Encoder Decoder for OpenAI's GPT-2 / GPT-3 / GPT-4 / GPT-4o / GPT-o1. Port of OpenAI's tiktoken with additional features.

一个 TypeScript 实现的高性能媒体库，支持 WebCodecs 和 Wasm。 A high-performance media library implemented in TypeScript, support WebCodecs and Wasm.

Download images from remote URLs or use local images and encode/decode them to Base64 string or Buffer object

🤘Tool for decoding qrcode by image,video or camera.

Type safe JSON decoder for TypeScript

🖼A full-featured PNG decoder and encoder.

A library to transform any EVM transaction into a human-readable format

Pure JavaScript toolkit for data URLs (MessagePack, Base58 and Base62)

🧬 Tiny typed data decoder—get to the DNA of your data

Acronym Decoder

Promise based streaming tokenizer

Excellent ECMAScript MessagePack implementation for 85% of people.

An easy to use encoder and decoder for the NBT format

🖼️ Manipulate GIFs easily using node-canvas!

extract the first frame in GIF without reading whole bytes, support both browser and nodejs 📸

A library ensuring type safety when decoding JSON data inspired by Elm

Simple package that implements Avro encoding and decoding with a schema-registry

Runtime validator that doesn't leave you in the desert 🏜️

React hook that allows you to decode QR Code data in a webworker (through comlink) using @zxing/library with some adaptations for web workers. Performance-first, non-ui blocking code. Uses OffscreenCanvas if available

🚀 JavaScript MP4 Codec.