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.

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

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

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

ESLint plugin that validates data using JSON Schema Validator.

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.

Schema for data modeling & validation

Form data validation library for Node.js

A utility for parsing and validating data URLs.

A JSON decoding library for Typescript

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:

Build functions in standardized containers.

Validation library inspired by Laravel's Validator

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

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

Test data used to validate a Cucumber implementation

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

Declarative Form Validations Framework

Azure Data Factory utilities library

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

Validates if a value is matrix-like.

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

Changesets for your local state

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

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

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

Type signature parser for typify

runtime type checking and validation of untyped JSON data

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.

jQWidgets is an advanced Angular, Vue, Blazor, React, Web Components, jquery, ASP .NET MVC, Custom Elements and HTML5 UI framework.

Ember computed property based validation library

**JSON Schema to Zod is a TypeScript library that converts JSON Schemas into Zod schemas, enabling dynamic validation of data structures.** This utility is particularly useful in scenarios where JSON Schemas are stored in databases and need to be dynamica

Concise data validation library for Node.js and browsers

validation library for nodejs, inspired by laravel.

[Mustache](https://www.npmjs.com/package/mustache) doesn't validate the data used in templates which means there is a low amount of safety when the data is managed/defined in another place or there are typos, e.g. for the following:

The package serves as a single source of truth when validating requests coming into Ghost's Admin API endpoints. It uses [JSON Schema](https://json-schema.org/) definitions under the hood to describe expected format of validated data.

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.

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