JSPM

Official Postman CLI - Command-line companion for API development, testing, and automation

Production-ready converter from JSON Schema (Draft 7+) to Zod v3 schemas with full TypeScript support

A modern TypeScript validation library designed around familiar interface syntax and powerful conditional validation. Experience schema validation that feels natural to TypeScript developers while unlocking advanced runtime validation capabilities.

A simple and lightweight TypeScript type guard library for runtime type validation.

A powerful library for comparing JSON objects with support for deep comparison, regex validation, and customizable options

Lightweight utilities for flexible Zod schema validation (string, number, array, object, boolean, ISO).

Enterprise-grade reusable schema definitions and validation utilities for SaaS applications. Provides comprehensive Zod schemas for users, organizations, authentication, products, billing, and APIs with full TypeScript support

A comprehensive class-based form validation library with 25+ built-in validators, async validation support, and advanced features for web applications

🧙‍♀️ A magical Express middleware to auto-generate CRUD APIs for Mongoose models with validation, unique keys, and middlewares.

Comprehensive OpenAPI parsing and validation library

🚀 Lightweight, fast & flexible request validation library for Node.js/Express/Next.js with TypeScript support. Features 20+ validation rules, database integration, file upload validation, and zero external dependencies. Perfect for API validation, form v

powerful TypeScript validation library built on the robust foundation of Effect combining exceptional type safety, high performance, and developer experience. Taking inspiration from Effect's functional principles, VEffect delivers a balanced approach tha

A world-class Joi validation error formatter for structured, user-friendly error handling.

Validate api request against api schema

ReliantType is a modern TypeScript validation library designed around familiar interface syntax and powerful conditional validation. Experience schema validation that feels natural to TypeScript developers while unlocking advanced runtime validation capab

A lightweight, powerful validation library for Node.js backend development. Simplify user input validation, error handling, and data integrity in Express APIs and JavaScript applications with ease.

Node module to add validation to API request input

A lightweight, fast, and tree-shakable validation library focused on performance and developer experience. Alternative to Zod/Yup for JSON, API responses, and form validation.

Code generator to create the interfaces and route handler for an express server from OpenAPI types

An intuitive type schema specification language

Universal data validation utilities using JSON Schema, Zod, and custom validation rules

MCP interface validation component for constraining and validating AI programming tools' generated frontend and backend API interface code