Data Validation

Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.

Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.

Returns true if a value has the characteristics of a valid JavaScript data descriptor.

Runtime library to validate data against TypeScript interfaces

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

Excel Workbook Manager - Read and Write xlsx and csv Files.

The modular and type safe schema library for validating structural data

Express middleware to validate request (headers, params, query, body) using Joi

Detect if a string is a data URL

Hash a stream of data, then validate

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

detect-content-type implements the algorithm described at http://mimesniff.spec.whatwg.org/ to determine the Content-Type of the given data. It considers at most the first 512 bytes of data. It always returns a valid MIME type: if it cannot determine a mo

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

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

Contains [zod](https://zod.dev/) schemas for the data that is stored in stack outputs and metadata. Using zod schemas allows us to generate types for the data as well as validate expected data when reading at runtime.

A form is a group of inputs that allows users submit data to a server and supports field validation errors.

Schema for data modeling & validation

Form data validation library for Node.js

ESLint plugin that validates data using JSON Schema Validator.

Build functions in standardized containers.

A utility for parsing and validating data URLs.

Validation helpers for [zod](https://github.com/colinhacks/zod) specifically for parsing `FormData` or `URLSearchParams`. This is particularly useful when using [Remix](https://github.com/remix-run/remix) and combos well with [remix-validated-form](https:

A form is a group of inputs that allows users submit data to a server and supports field validation errors.

Validation library inspired by Laravel's Validator

Azure Data Factory utilities library

Find diff between any two variables where variables be any valid JavaScript data type like string, numeric, array or object

Validates if a value is matrix-like.

Validation of CSV file against user defined schema (returns back object with data and invalid messages)

NestJS middleware for handling multipart/form-data, which is primarily used for uploading files

Declarative Form Validations Framework

Add-on to jQuery Validation to enable unobtrusive validation options in data-* attributes.

Elegant and battle-tested validation library for type-safe input data for TypeScript

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

Type signature parser for typify

runtime type checking and validation of untyped JSON data

Concise data validation library for Node.js and browsers

Ember computed property based validation library

Lightweight data grid jQuery plugin. It supports basic grid operations like inserting, filtering, editing, deleting, paging, sorting, and validation. jsGrid is tunable and allows to customize appearance and components.

Library for validating, parsing, and formatting data against open api schemas.

Changesets for your local state

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

Ultrafast UTF-8 data validation

A TypeScript library for validating, formatting, and converting IBAN (International Bank Account Number) and BBAN (Basic Bank Account Number), offering comprehensive support for international banking data standards.

validation library for nodejs, inspired by laravel.

A library of validations applicable to several Brazilian data like I.E., CNPJ, CPF and others

Decentraland data structure interfaces and validators for TypeScript-based projects.

Common error classes and utility functions

Isomorphic Data Model Validations

A micro client-side validation library

Fields can be used to manage data when it comes to form data manipulation and validation. After being associated with a component, the form data can be automatically written back, read, and verified.