No-dependencies, low-level, high-performance JIT code generation package for JavaScript

mjml-validator

React Hook Form validation resolvers: Yup, Joi, Superstruct, Zod, Vest, Class Validator, io-ts, Nope, computed-types, TypeBox, arktype, Typanion, Effect-TS and VineJS

General purpose validation library for JavaScript

Light ECMAScript (JavaScript) Value Notation - human written, concise, typed, flexible

Serialize JavaScript to a superset of JSON that includes regular expressions and functions.

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

Function argument validation for humans

Wrap zod validation errors in user-friendly readable messages

Runtime validation and processing of JavaScript types

Performant, flexible and extensible forms library for React Hooks

Hash a stream of data, then validate

Decorator-based property validation for classes.

Quick and easy Smarty address validation. Written in TypeScript with bundled type declarations.

URI validation functions

Check if something is a generator function

Array manipulation, ordering, searching, summarizing, etc.

Contains JavaScript & TypeScript object models for Microsoft Power BI JavaScript SDK. For each model there is a TypeScript interface, and a validation function to ensure and object is valid.

This package provides utilities for creating schema for different types, along with serialization information.

An object schema merger/validator