validation

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

Data validation using Python type hints

String 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

structured outputs for llms

A Higher Order Component using react-redux to keep form state in a Redux store

Decorator-based property validation for classes.

A configuration as code language with rich validation and tooling.

✅ Painless Vue forms

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

CakePHP: The Rapid Development Framework for PHP - Official Repository

For entering, formatting, and validating international telephone numbers. Available in vanilla JavaScript, or as React, Vue, Angular, and Svelte compo...

🏁 High performance subscription-based form state management for React

A lightweight library for converting complex objects to and from simple Python datatypes.

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

Simple, lightweight model-based validation for Vue.js

Runtime type system for IO decoding/encoding

The home of the CUE language! Validate and define text-based and dynamic configuration

An express.js middleware for validator.js.

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

The most awesome validation engine ever created for PHP

A Swift framework for parsing, formatting and validating international phone numbers. Inspired by Google's libphonenumber.

The JSON Schema specification

An implementation of the JSON Schema specification for Python

AI-safe .env files: Schemas for agents, Secrets for humans.

The form framework for coding agents

A light-weight, flexible, and expressive statistical data testing library

🐊 Policy Controller for Kubernetes

A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML

Language-agnostic HTTP API Testing Tool

An idiomatic Go (golang) validation package. Supports configurable and extensible validation rules (validators) using normal language constructs inste...

☑️ JavaScript fluent validation library

Protocol Buffer Validation - replaced by https://github.com/bufbuild/protovalidate

Function argument validation for humans

A standard interface for TypeScript schema validation libraries

A delightful way to building a RESTful API with NodeJs & TypeScript by @w3tecch

A FAST Kubernetes manifests validator, with support for Custom Resources!

Full-stack CRUD, simplified, with SSOT TypeScript entities

Phone number functionality for Laravel

Making SvelteKit forms a pleasure to use!

Runtime validation for static types

Provides tools to validate values

Vest ✅ Declarative validations framework

A generalised Result object implementation for .NET/C#

Progressively enhance HTML forms with React. Build resilient, type-safe forms with no hassle using web standards.

Python Data Structures for Humans™.

KCL Language Core and API

Featureful configuration management library for Node.js

Fast, dependency-free Go package to infer binary file types based on the magic numbers header signature