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

An express.js middleware for validator.js.

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

[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

The form framework for coding agents

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

🐊 Policy Controller for Kubernetes

Language-agnostic HTTP API Testing Tool

☑️ 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...

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

Function argument validation for humans

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

A standard interface for TypeScript schema validation libraries

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

Full-stack CRUD, simplified, with SSOT TypeScript entities

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

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#

Python Data Structures for Humans™.

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

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

Featureful configuration management library for Node.js

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