JSPM

JSON Schema validation library for JavaScript / Node / Express.

Easy property validation for JavaScript, Node and Express.

Javascript node module for programmatic filtering and validation of Json objects.

Uma biblioteca TypeScript/JavaScript/Node para validar e formatar números de CPF e CNPJ já com o suporte aos novos CNPJ alfanuméricos.

Runtime type-checking for JavaScript.

A tool set for CSS: fast detailed parser (CSS → AST), walker (AST traversal), generator (AST → CSS) and lexer (validation and matching) based on specs and browser implementations

Object schema validation

JSON Safe Parser & Schema Validator

Give me a string and I'll tell you if it's a valid npm package license string

Validate and visualize dependencies. With your rules. JavaScript, TypeScript, CoffeeScript. ES6, CommonJS, AMD.

A library for parsing IPv4 and IPv6 IP addresses in node and the browser.

A tool set for CSS: fast detailed parser (CSS → AST), walker (AST traversal), generator (AST → CSS) and lexer (validation and matching) based on specs and browser implementations

A JavaScript plugin for entering and validating international telephone numbers

Build functions in standardized containers.

An object schema merger/validator

Detect Filetype by bytes

Validates if a value is a string primitive.

A validation module for browsers and Node.js to validate credit card numbers against the luhn algorithm.

Featureful configuration management library for Node.js (nested structure, schema validation, etc.)

The fastest JS validator library for NodeJS

A simple and composable way to validate data in JavaScript (and TypeScript).

Provides a fast, pretty robust e-mail validator. Only checks form, not function.

allows easy type enforcement for all JS types objects and classes. it is also extensible and provides simple to use type checks for your own custom classes and types

The modular and type safe schema library for validating structural data

Swagger 2.0 and OpenAPI 3.0 parser and validator for Node and browsers

Another JSON Schema Validator

Dead simple fluent JavaScript validation library

Quick and easy Smarty address validation.

A temporary custom copy of https://github.com/csstree/csstree

A syntax sugar tool around Node fetch() API, tailored to work with TypeScript and response validators

A type checking library where each exported function returns either true or false and does not throw. Also added tests.

Swagger 2.0 and OpenAPI 3.x parser and validator for Node and browsers

validation library for nodejs, inspired by laravel.

TypeScript-first schema declaration and validation library with static type inference

A rich and efficient node validation library for String, Number, Date and Javascript Objects

allows easy type enforcement for all JS types objects and classes. it is also extensible and provides simple to use type checks for your own custom classes and types

Format validation for Ajv v7+

```diff -Maintener wanted ``` Validation for REST Services built with [node-restify](https://github.com/mcavage/node-restify) in node.js

URI validation functions

A simple and composable way to validate data in JavaScript (and TypeScript).

Validates if a value is an array.

Validates if a value is a function.

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.

Easy Data science (Machine learning) in JavaScript & Node (Including Bandits & Naive Bayes)

Validates if a value is an integer array.

Assert that a Node-API value is a specified Node-API data type.

Validates if a value is an integer.

Validates if a value is a number.

Customizable and hackable json-validator and json-schema utilities for traversal, data generation and validation

Check if a protocol requires a certain port number to be added to an URL.

General purpose validation library for JavaScript

Utilities for determining if characters belong to character classes defined by the XML specs.

Give me a string and I'll tell you if it's a valid npm package name

Type check values

A family of specs for interoperable TypeScript

Performant, flexible and extensible forms library for React Hooks

String validation and sanitization

Wrap zod validation errors in user-friendly readable messages

Creates Zod types from JSON Schema at runtime

A pure-JS Schematron implementation for Node, browsers and CLI

Provides a fast company / work email validator by checking whether the email domain is in the free email provider list.

Validate an email address according to RFCs 5321, 5322, and others

Validation library inspired by Laravel's Validator

Validation for your environment variables

Declarative validations for JavaScript

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

Email address and domain validation

C utilities for asserting that a Node-API call returns an "ok" status.

Assert that two Node-API data types are equal.

Ajv class for JSON Schema draft-04

a simple, fast and robust email validator

RDF SHACL validator

Powerful object and string validation in Javascript.

Verifalia email verification library for JavaScript: verify email addresses in real-time and check whether they are deliverable, invalid, or otherwise risky.

A general purpose javascript library for credit card number validation and formatting. Based on https://github.com/jondavidjohn/payform and https://github.com/stripe/jquery.payment. Usable in React Native and Node.

Check if a string can be used as a JavaScript variable name

Simple validations for node and the browser.

Test if a value is an Error object.

Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)

Enforce schema on JavaScript objects, including type, transformation, and validation. Supports extends, sub-schemas, and arrays.

Validate HTML colors by 'name', 'special name', 'hex', 'rgb', 'rgba', 'hsl', 'hsla', 'hwb', 'lab' or 'lch' values

Disable introspection in graphql-js with a validation rule

Utils library to use with the Smarty Javascript SDK

Email address and domain validation

Strict URL sanitization with security-focused validation

GitHub's GraphQL Schema with validation. Automatically updated.

Core module of JSON Forms

A fast and easy to use JSON Schema validator

JSON/CJSON/JSON5 parser, syntax and schema validator and pretty-printer.

⛑️ JSON serialization should never fail

Standard assertion utilities.

Validates mint.json files

express-validation is a middleware that validates a request and returns a response with errors; if any of the configured validation rules fail.

Build forms in React, without the tears

Another JSON Schema Validator

Email Verification that's astonishingly easy and low-cost. See https://emailable.com for details.

Validate JSON

Validate any Bitcoin address - P2WSH, P2WPKH, P2SH, P2PKH - Mainnet & Testnet

ESLint plugin that validates data using JSON Schema Validator.

Convert Swagger 2.0 definitions to OpenApi 3.0 and validate

Parser/validator for OpenAPI 3.x definitions

Validate JSON

Divhide javascript core components for NodeJs, Browser, Titanium, ... and everything that runs javascript.

A (XSD) schema validator for nodejs

Reactive MobX Form State Management

Unquoted JavaScript property name validator

Validates if a value is a JavaScript object.

Making SvelteKit forms a pleasure to use!

Configurable, input validated routing for koa.

A command-line JSON, YAML and TOML validator that's on your wavelength

validate express application inputs and parameters using joi

Generate Zod schemas from Drizzle ORM schemas

Adds pattern matching, optional properties, and several other helpers and types, to io-ts.

Library for checking spaces in files

node-restify-swagger =======================

JSON Schema fluent API

Function argument validation for humans

Swagger 2.0 and OpenAPI 3.0 parser and validator for Node and browsers

A joi validation middleware for Express.

Express middleware for the validator module.

For use with React PropTypes. Will error on any prop not explicitly specified.

Assert that a Node-API value is a Node-API typed array.

Assert that two Node-API typed array data types are equal.

Validate JS variable names

A tiny javascript type testing tool

Validate the api to your functions to help people use them correctly. This is pretty much React's propTypes without React.

Second generation object or request validator for node.js

Check if a string is a scoped npm package name

Extends Zod with metadata

ServiceStack's TypeScript library providing convenience utilities in developing web apps. Integrates with ServiceStack's Server features including ServiceClient, Server Events, Error Handling and Validation

Core utility for Felte's integration with front-end frameworks

The parser package for the Powertools for AWS Lambda (TypeScript) library.

0-Deps, simple, fast, for browser and node js object schema validator

Validate cron expressions

Validate your forms, frontend, without writing a single line of javascript!

Painless forms for Vue.js

A beautiful command-line prompt for node.js

User validations for npm

Regular expression matching for email addresses. Maintained, configurable, more accurate, and browser-friendly alternative to email-regex. Works in Node v14+ and browsers. Made for Spam Scanner and Forward Email.

A string formatter and validator based on masks

Adds a phone number validation check to yup validator using google-libphonenumber.

A package for detecting all duplicated property keys of a JSON string.

High-level validation library for Node.js (used in Waterline)

Validate object properties in javascript.

A (XSD) schema validator for nodejs

Skema provides a handy & composable way to validate / transform / purify the input data.

Validation rule for GraphQL query complexity analysis

Validates if a value is a Buffer object.

React Hook Form error message component

check if a string is a valid JSON string without using Try/Catch

React Hook Form dev tool to help debugging forms

Ember computed property based validation library

A tiny Node HTTP(S) request wrapper, for JSON requests and responses

Validates if a value is a nonnegative integer.

Format, validate and generate CNPJ numbers

This package is use for Validating whether variable is boolean or not and converting boolean variable to javascript boolean.

Hash a stream of data, then validate

This package is inspired by Laravel validation, and aims to make body validation easier for Javascript developers

Node.js utility tool for creating and checking subresource integrity

Postal Codes

React component to provide validation states to form fields

Dirty Forms is a jQuery plugin to help prevent users from losing data when editing forms.

An incremental regular expression parser in JavaScript; useful for input validation, RegExp

GTIN (UPC, EAN, ITF, etc.) utilities.

Common error classes and utility functions

Validates if a value is a number primitive, excluding NaN.

Validates if a value is array-like.

Blazing fast input validation and transformation ⚡

Validates if a value is a number primitive and an integer.

cron-validate is a cron-expression validator written in TypeScript.

A form input builder and validator for React

Validates if a value is matrix-like.

Validates if a value is a positive integer.

A validation module for browsers and Node.js to validate an American Bankers Association Routing Number used in ACH payments.

Create an error from the result of validate-glob-opts

A React component for input text field

Card type definitions and methods for creditcards

validates style objects by ensuring they only have valid keys

A tiny vanilla javascript form validation library

Minimal JavaScript type checking library

An internationalized hostname validator as defined by RFC5890, RFC5891, RFC5892, RFC5893, RFC3492 and UTS#46

Validates if a value is ndarray-like.

Converts json from and to Joi objects.

A json validator that has an option to check for duplicated keys

Runtime validation for static types

Validate your BPMN diagrams based on configurable lint rules

Utilities to format and customize Zod error messages

The modular and type-safe form library for SolidJS

Standard Number Validation

Helpers to simplify nodejs code on FASS environments

Validate JSON

Object schema validation

Validates cron expressions

Swagger 2.0 and OpenAPI 3.0 command-line tool

Typescript API client with autocompletion and zod validations

Check password strength

Validate html using validator.w3.org/nu og html-validate

An object shape validation utility.

Generate fast-check arbitraries from Zod schemas.

Client-side form validation made easy

vee-validate integration with zod schema validation

A regular expression that only matches a valid Github username

Form Validation for Vue.js

Schema Validation with typescript type inference.

An API wrapper for the NeverBounce API

Validate postcodes based on country

Lightweight validator supporting Language Independent Validation Rules Specification

Disposable email domains

Effortlessly convert your JSON Object to JSON Schema, Mongoose Schema, or a Generic template for quick documentation / upstart.

A lightweight JavaScript widget with zero dependencies that performs real-time email address validation using the Verifalia email verification service. This widget integrates seamlessly with any web form to swiftly identify and eliminate invalid, undelive

TypeScript class that validates UK bank account details using the modulus checking algorithm.

Integrate [cz-customizable](https://github.com/leoforfree/cz-customizable) config with [ghooks](https://github.com/gtramontina/ghooks) or [husky](https://github.com/typicode/husky) to use a single configuration for commit message generation AND commit mes

Parsing Library for Typescript and Javascript.

Parser and validator for US and Canadian phone numbers

Capture form validation back from the browser

Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams

A port number formatting validator.

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The framework agnostic core of FormKit

Schema for data modeling & validation

A collection of utilities for Node.js and browser environments.

CTRF reference implementation in TypeScript for creating and validating CTRF documents.

A set of opinionated helpers built on top of the Constraint Validation API

RFC-compliant email validation and parsing

Form data validation library for Node.js

The best possible way to verify and validate an email address.

Validate a response according to an openapi schema.

Conform helpers for integrating with Zod

The modular and type-safe form library for Qwik

Conform view adapter for react

Joi extension for dates

A small and simple object schema library for the browser and node

Validates password according to flexible and intuitive specifications

Validate and visualize dependencies. With your rules. JavaScript, TypeScript, CoffeeScript. ES6, CommonJS, AMD.

Check if the given value is of the particular type or types.

Shared utilities for FormKit packages

Node.js middleware to validate Host and Referer headers in HTTP requests and protect against DNS rebinding attacks.

Validate NHS numbers in various guises

Utility to wrap a FormKitNode in a dependency tracking observer proxy

Forms utilities for PrimeUI Libraries

A general purpose library for building credit card forms, validating inputs, and formatting numbers.

Development tools for FormKit.

Build industry leading Vue forms 10x faster.

Commonly shared types for FormKit

Flexible, efficient request validation for Connect

Png validator checks Png files for corruption

Validate the type of arguments passed through the function.

Lyxa type definitions and validation schemas for both frontend and backend

Validate OpenApi specifications against their JSON schema

Inspired by koa-joi-router, this package aims to provide a similar feature-set while leveraging Zod and Typescript to create typesafe routes and middlewares with built in I/O validation.