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

CakePHP: The Rapid Development Framework for PHP - Official Repository

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

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

🏁 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

An express.js middleware for validator.js.

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

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

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.

An implementation of the JSON Schema specification for Python

The JSON Schema specification

The form framework for coding agents

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

Language-agnostic HTTP API Testing Tool

🐊 Policy Controller for Kubernetes

☑️ JavaScript fluent validation library

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

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

Function argument validation for humans

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

A standard interface for TypeScript schema validation libraries

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

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

Full-stack CRUD, simplified, with SSOT TypeScript entities

Phone number functionality for Laravel

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

Making SvelteKit forms a pleasure to use!

Provides tools to validate values

Runtime validation for static types

Vest ✅ Declarative validations framework

A generalised Result object implementation for .NET/C#

Python Data Structures for Humans™.

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

Featureful configuration management library for Node.js

KCL Programming Language Core and API (CNCF Sandbox Project). https://kcl-lang.io

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