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

Validate XML for Syntax and Business rules without C/C++ based libraries

A library for validating credit card fields

Grunt plugin for HTML validation, using the Nu Html Checker (v.Nu)

Sanity template validator for remote templates

Internationalised error messages for Ajv JSON validator

Validates XML name productions — Name, NCName, QName, NMToken, NMTokens — for XML 1.0 and 1.1

CSS validator built on csstree

Validate XML schema forbusiness rules and returns all the possible failures

The goal of the package is to provide lightweight tools for validating strings denotings dates and time. It includes ISO 8601 datestring validation, simple YYYY-MM-DD date validation and time validation in hh:mm:ss.fff format. See details in readme.

Stylelint plugin to validate CSS syntax

mongoose-unique-validator is a plugin which adds pre-save validation for unique fields within a Mongoose schema.

Semantic HTML liner in just pure CSS way.

A simple wrapper around class-transformer and class-validator which provides nice and programmer-friendly API.

Validator middleware for the middy framework

$merge and $patch keywords for Ajv JSON-Schema validator to extend schemas

Validator middleware using Zod

Wallet address validator for Bitcoin and other Altcoins.

JavaScript port of Apache Commons Validator

WebVTT parser and validator