Utility library for validation of PESEL, NIP, REGON, identity card etc. Aimed mostly at Polish environment. [Polish] Walidacja numerów pesel, nip, regon, dowodu osobistego.

csv test data for writing robust csv parsers

Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. It includes many web standards from WHATWG DOM and HTML.

A library based on RxJS, which allows Nostr applications to easily communicate with relays.

NDK Wallet

fast 64 bit string hashing function

nostr relay communication framework built on rxjs

Deterministic Cashu payment delivery fault injection and recovery evidence

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

A simpler (and smaller) rewrite of Google Android's libphonenumber library in javascript

The Estiva wire format: Buzz-shaped Nostr event builders, NIP-01 ids, NIP-19 naddr, NIP-98 HTTP auth, and the relay clients. Speaks the protocol; interprets nothing.

Fastest random ID and random string generation for Node.js

Check if a number is a valid Numer Identyfikacji Podatkowej (NIP)

Seja bem-vindo(a) à **Biblioteca de Emissão de NF-e** — sua parceira definitiva para integrar **emissão de Nota Fiscal Eletrônica modelo 55 (NF-e)** e **modelo 65 (NFC-e)** em aplicações modernas, com simplicidade, robustez e total conformidade com a legi

OpenClaw Nostr channel plugin for NIP-04 encrypted direct messages.

Validate, generate and format CNPJ numbers

This is an encoder and decoder for the foundationdb [tuple encoding](https://apple.github.io/foundationdb/data-modeling.html#tuples) format.

UTFZ is a small utf16 compression library.

Core cryptographic utilities for Nostr protocol — edge-native (Cloudflare Workers / Deno / browser), zero non-crypto dependencies

Unicity Nostr SDK - Token transfers and nametag bindings over Nostr protocol