Awesome GitHub RepositoriesForm Validation Libraries

Zod is a TypeScript-first schema declaration and validation library designed to ensure end-to-end data integrity. It functions as a runtime type guard, allowing developers to define complex data structures through a declarative, chainable syntax. By using these schema definitions, the library automatically derives static TypeScript types, eliminating the need for manual type duplication and ensuring that runtime data matches expected application contracts. The library distinguishes itself through functional schema composition, which enables the creation of hierarchical structures by nesting a

React-admin is a framework for building data-driven administrative interfaces that connect to REST or GraphQL backends. It provides a comprehensive suite of tools for managing the full lifecycle of administrative applications, including resource-oriented routing, declarative form scaffolding, and context-driven state management. By utilizing a modular adapter-based architecture, the framework abstracts backend communication, allowing developers to build consistent CRUD interfaces that handle data fetching, authentication, and synchronization automatically. The project distinguishes itself thr

This project is a declarative framework for building interactive web forms by parsing JSON Schema definitions. It functions as a component-based generator that automatically maps schema constraints to input fields and validation logic, ensuring that data collection remains consistent with defined structures. The library distinguishes itself through a registry-based architecture that allows for extensive customization of the user interface. Developers can override default widgets, field templates, and layout structures to accommodate unique data types or specific design requirements. It suppor

This project is a request testing service and diagnostic utility designed to help developers inspect HTTP interactions and verify client-side network logic. It functions as a stateless server that echoes request metadata, including headers, parameters, and body content, back to the calling client to ensure data is transmitted as intended. The service distinguishes itself by providing a platform for mocking REST API endpoints and simulating various server behaviors. Developers can use these endpoints to trigger specific HTTP status codes, test content negotiation, validate form data encoding,

CoreUI Free Bootstrap Admin Template is a pre-built, responsive admin dashboard template built on Bootstrap 5 for constructing back-office interfaces. It provides a library of UI components with native wrappers for React, Vue, and Angular applications, alongside a Sass-based theming system for managing brand colors, dark mode, and design tokens via variables and CSS custom properties. The template includes a set of advanced form controls such as autocomplete, date pickers, and multi-step wizards with built-in validation, and supports switching the entire interface between built-in dark and li

Vee-validate is a form validation library and state management tool for Vue applications. It enables the validation of user inputs through declarative rules and tracks form metadata, including submission status and dirty states. The library functions as a wrapper for integrating external schema validation libraries to enforce consistent data shapes. It also serves as an internationalized framework for displaying translated error messages and localized feedback. The project covers broad capability areas including form state management, the handling of complex nested data structures, and the s

Este proyecto es un plugin de jQuery y validador de formularios del lado del cliente utilizado para verificar las entradas de formularios web antes de que sean enviadas a un servidor. Emplea un motor de validación basado en reglas para verificar la entrada del usuario contra reglas predefinidas o personalizadas para garantizar la integridad de los datos en el navegador. La herramienta está diseñada como un sistema de validación compatible con ARIA, utilizando atributos de accesibilidad para vincular mensajes de error a los campos de entrada. Esto asegura que los usuarios de lectores de pantalla sean notificados cuando un campo contiene un valor no válido durante el proceso de envío del formulario. El sistema admite la validación remota del servidor mediante solicitudes HTTP asíncronas y permite la inyección dinámica de reglas para añadir lógica de validación personalizada. Gestiona la interfaz de usuario a través del renderizado de errores vinculado al DOM y utiliza disparadores basados en eventos para ejecutar comprobaciones durante eventos de foco, desenfoque o envío.

This project is a jQuery-based form validation library designed to verify HTML form input values on the client side before submission. It functions as an input validator that enforces data integrity constraints through rule-based verification and value normalization. The library focuses on web accessibility compliance by linking error messages to input fields via ARIA attributes, ensuring that screen readers can announce validation failures to the user. The system supports the creation of custom validation rules and the transformation of raw input strings through a normalization pipeline. Co

This project is a digital signature collector and public petition platform designed as a labor rights advocacy tool. It functions as a web application for gathering names and professional affiliations to create public lists of support. The platform focuses on labor rights advocacy and employee collective action, specifically organizing signatures to protest illegal working hours and labor abuses. It facilitates professional solidarity campaigns by gathering endorsements from industry experts and employees to bring visibility to labor disputes. The system manages the collection of signatures

Parsley.js is a JavaScript form validation library that provides a client-side data validator for verifying input correctness before submission. It functions as an HTML attribute-based validator, allowing constraints to be defined declaratively within HTML data attributes to enforce rules without requiring custom scripts. The framework distinguishes itself through a customizable validation system that supports user-defined rules and custom error message templates. It includes a remote validation interface to verify form values against server endpoints via asynchronous network requests and sup

Valibot is a modular, type-safe schema library for validating and parsing structural data in TypeScript environments.

Nuxt UI is a comprehensive Vue component library built for the Nuxt ecosystem, providing over 125 production-ready, WAI-ARIA compliant components for building modern web applications. The library offers a complete design system with Tailwind CSS theming, supporting dark mode, custom color palettes, semantic color aliases, and runtime theme switching through CSS design tokens. It includes built-in internationalization for over 50 languages, server-side rendering compatibility, and a Figma kit that mirrors the code components for design-to-development consistency. The library distinguishes itse

web.py is a minimal Python web framework that provides the core components needed to build web applications: URL routing, template rendering, database access, form handling, and session management. The framework uses a convention-based approach where URL patterns are automatically mapped to handler classes based on their names, eliminating the need for manual route configuration. It exposes applications as WSGI callables, making them deployable with any WSGI-compliant server. The framework distinguishes itself through its metaclass-driven auto-discovery system, which automatically registers h

This project is a schema-based form generator for Vue.js that constructs interactive user interfaces by parsing structured data configurations. It automates the creation of form layouts, data binding, and field rendering, eliminating the need for manual template creation for individual forms. The system distinguishes itself through a registry-based architecture that allows for the integration of custom input components. By mapping specialized field types to the generation engine, developers can extend the library to handle unique data types or complex interface requirements that fall outside

Validate.js is a JavaScript library designed for declarative data validation and form processing. It provides a framework for verifying complex objects and individual data points against structured constraint schemas, ensuring that application state and user input meet defined requirements. The library distinguishes itself through its support for asynchronous validation, allowing for verification tasks that require external data sources or server-side checks. It includes a built-in utility for extracting and normalizing data from web forms, which cleans input by removing whitespace and empty

Backbone Forms is a schema-driven library designed to automate the generation and validation of HTML forms within the BackboneJS ecosystem. It functions as a framework for building data entry interfaces that bind directly to application models, ensuring data integrity through a combination of schema-level rules and model-level constraints. The library distinguishes itself through a modular architecture that supports the creation of custom input editors and the use of pluggable HTML templates. This allows for the management of complex, hierarchical data structures, including nested objects and

Este proyecto es una biblioteca de gestión de estado reactiva diseñada para manejar datos de formularios complejos y lógica de validación. Utiliza patrones basados en observables para sincronizar componentes de interfaz de usuario con modelos de datos subyacentes, asegurando que los estados de los formularios permanezcan consistentes en toda la aplicación. La biblioteca proporciona un enfoque estructurado para gestionar la inicialización de formularios, el seguimiento de campos y los eventos del ciclo de vida. La biblioteca se distingue por su soporte para estructuras de datos profundamente anidadas y composición jerárquica, permitiendo la validación recursiva y actualizaciones dinámicas dentro de árboles de objetos complejos. Cuenta con un motor de validación basado en esquemas que admite reglas tanto síncronas como asíncronas, junto con una interceptación estilo middleware que permite a la lógica personalizada monitorear o transformar datos durante las actualizaciones de campos. Los desarrolladores pueden acceder y manipular campos específicos dinámicamente utilizando direccionamiento basado en rutas, proporcionando flexibilidad al trabajar con modelos de formularios grandes o en evolución. Más allá de la gestión de estado central, la biblioteca incluye utilidades para la transformación de datos, como formatear valores de entrada y calcular valores de campos basados en otros datos del formulario. Ofrece capacidades de orquestación de múltiples formularios para coordinar la validación y el envío en múltiples instancias, y permanece desacoplada de capas de presentación específicas para permitir la integración con cualquier biblioteca de componentes de interfaz de usuario. El framework también proporciona herramientas integradas para monitorear eventos del ciclo de vida de los campos y depurar transiciones de estado internas.