Validation

Universal validation adapter that integrates various validation libraries like Zod, Valibot, and Yup

Returns true if a windows file path has invalid characters.

Validate JSON

Check if a string is a valid JavaScript expression

Another JSON Schema Validator

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

Validation utilities

A standard interface for TypeScript schema validation libraries

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

Object schema validation

Loosely validate an event.

Compile objects with duplicate keys to valid strict ES5

Custom React PropType validators that we use at Airbnb.

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

The modular and type safe schema library for validating structural data

validate form asynchronous

Brazilian personal documents validation - cpf, cnpj, titulo, pis/pasep, cnh, renavam, processos judiciais, protocolo federal, código de rastreamento dos correios

Returns true if a file path does not contain any invalid characters.

Function argument validation for humans

Check if a string is an IP address

Extended validation plugin adds support for writing GraphQL validation rules, that has access to all `execute` parameters, including variables.

Checksum validator

JSON Schema validation for Human

Detect if a string is a data URL

Check if a string is a scoped npm package name

Resolve a relative path against a root path with validation

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

Pre-made validation adapters for the validation-adapter library, including adapters for Zod and Valibot

Validates if a value is an array.

Validates if a value is a function.

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

Validate form asynchronous

Validation plugin for FormKit

Validates if a value is a number.

Validates if a value is an integer.

Validates if a value is an integer array.

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

A simple method that will strip a valid hex prefix off a string, if present.

A [JSONSchema](https://json-schema.org/) validator that uses code generation to be extremely fast.

Common lib for swagger validation

Express middleware for the validator module.

Validates mint.json files

mjml-validator

A small lib to validate IP addresses.

User validations for npm

An ESLint plugin that validates TypeScript doc comments

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

Validation for TypeScript

Perform rapid conversation and validation of JSON structure between Postman Collection Format v1 and v2

A JSON schema validator that will run on Cloudflare workers. Supports drafts 4, 7, 2019-09, and 2020-12.