Checks if a given string is a valid npm package name adhering to npm rules and best practice

For managing certificates when developing Office Add-ins.

hint that that checks if the TypeScript configuration is valid.

A tidy ISO 8601 date formatter and parser

Check if a string is a valid filename.

Library with base interfaces for LangGraph checkpoint savers.

Fix up the end of a partial JSON string to create valid JSON.

Everything you need for Dev

Vercel routing utilities

Detect Browser, Engine, OS, CPU, and Device type/model from User-Agent & Client Hints data. Supports browser & node.js environment

A Node.js wrapper for Spotify's Web API

A JSONSchema validator that uses code generation to be extremely fast

Helpers for encoding and decoding messages according to the offchain message specification

A cross-browser / node.js validator, based on flatiron revalidator.

Iterable SDK for JavaScript and Node.

SPDX license expressions for npm packages without proper metadata

A general purpose library for building credit card forms, validating inputs and formatting numbers. Base on jquery.payment by @stripe, but without the jQuery.

Lit-based web component for the CopilotKit web inspector

A language for querying datasets using key-value pairs

Blazing fast input validation and transformation ⚡