Parse, validate, manipulate, and display dates in javascript.

📋 React Hooks for form state management and validation (Web + React Native)

TypeScript-first schema validation with static type inference

File Upload widget with multiple file selection, drag&drop support, progress bar, validation and preview images, audio and video for jQuery. Supports cross-domain, chunked and resumable file uploads. Works with any server-side platform (Google App Engine, PHP, Python, Ruby on Rails, Java, etc.) that supports standard HTML form file uploads.

Data validation using Python type hints

String validation

Dead simple Object schema validation

The most powerful data validation library for JS

:100:Go Struct and Field validation, including Cross Field, Cross Struct, Map, Slice and Array diving

Google's common Java, C++ and JavaScript library for parsing, formatting, and validating international phone numbers.

The fastest JSON schema Validator. Supports JSON Schema draft-04/06/07/2019-09/2020-12 and JSON Type Definition (RFC8927)

A web-based tool to view, edit, format, and validate JSON

Dockerfile linter, validate inline bash, written in Haskell

Decorator-based property validation for classes.

PHP Email address validator

✅ Painless Vue forms

A configuration as code language with rich validation and tooling.

jQuery Validation Plugin library sources

A popular .NET validation library for building strongly-typed validation rules.

validate form asynchronous

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

The modular and type safe schema library for validating structural data 🤖

A JavaScript plugin for entering, formatting and validating international telephone numbers. Includes TypeScript definitions, plus React, Vue, Angular and Svelte components.

TypeScript's 1:1 validator, optimized from editor to runtime

🐔 Toolkit to parse, validate, manipulate, compare and display dates, time & timezones in Swift.

Assertions to validate method input/output with nice error messages.

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

Simple, lightweight model-based validation for Vue.js

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

[Go] Package of validators and sanitizers for strings, numerics, slices and structs