Open-source alternatives to React Final Form

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

Redux-form is a form state management library that synchronizes user input and form metadata with a global Redux store. It acts as a bridge between form input fields and the Redux ecosystem, ensuring predictable state transitions through a centralized state manager. The library utilizes Higher Order Components to connect React applications to the Redux store. This approach offloads state management from local components to a global store, facilitating the orchestration of complex forms with numerous fields. The system maintains consistency through a unidirectional data flow, integrating form

Unform is a React form state manager designed to handle the state, validation, and submission of complex user input forms. It utilizes an uncontrolled form API that minimizes re-renders by using references instead of synchronized state to manage form data. The library features a nested data mapper that organizes fields into hierarchical objects and arrays using scoping and dot notation. It also includes a custom input adapter to connect third-party UI components and non-standard inputs to the centralized form state, and a validation engine that checks submitted data against defined schemas to

Final Form is a framework-agnostic form state management library that tracks values, errors, and validation states for web applications. It operates as a reactive state engine, allowing individual form inputs to subscribe only to the specific state slices they require, such as values, touched status, or errors, in order to prevent unnecessary component re-renders across large forms. The library manages core form orchestration features including field registration, initialization, submission handling, typed data support, and integration with standard document elements or component-based rende

Field-form is a library for managing complex form state, validation, and field synchronization within React component trees. It functions as a state management solution that uses a shared provider to distribute form data and validation messages across nested components. The library distinguishes itself through a dynamic field registry that supports the addition, removal, and reordering of form controls. It employs a field-level subscription model to ensure that individual components only re-render when their specific state slices change, and it provides an imperative interface for triggering

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

Vuelidate is a model-based validation engine and form validation library for Vue.js applications. It functions as a state validator that checks data models and input fields against defined rules to ensure data consistency and correctness. The library provides tools for form state management, allowing developers to track the modified status of fields and extract specific validation errors. It enables control over validation timing, such as deferring the evaluation of rules until a user interaction occurs. The system covers a broad range of client-side data validation capabilities, including r

This library provides a framework for managing form state, validation, and submission logic within applications. It utilizes a centralized state container to track input values and field metadata, ensuring that user interface elements remain synchronized with data through declarative field bindings. The project is distinguished by its cross-platform abstraction layer, which decouples form logic from specific rendering environments. This allows developers to implement consistent validation rules and state management patterns that function identically across both web and mobile applications. T

Angular schema form is a framework directive and form component library that automatically generates and validates interactive HTML form controls from standard JSON schemas and companion layout configurations. It translates structured data definitions into customizable user input interfaces, parsing data types and custom rules into native form controls and reusable HTML markup templates. The project provides capabilities for dynamic field management, allowing form elements to show or hide conditionally by evaluating expressions against current model and scope state, and supporting dynamic arr

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

Formik is a React form management library and state management tool. It serves as a client-side form validator for checking user entries against defined rules and managing associated error messages before submission. The library synchronizes user input values across multiple fields into a single object for retrieval and manipulates the transition of form data from initial entry through validation and final submission. It provides capabilities for tracking complex form state, managing form submissions, and validating user inputs to ensure data integrity.

This project is a JSON-based form rendering framework and visual creator designed for dynamic data collection. It provides a JavaScript form builder library that transforms JSON schemas into functional web forms and multi-step wizards, with a dedicated visual survey creator for designing layouts and branching logic without writing code. The library is distinguished by its bidirectional PDF integration, which allows the conversion of JSON schemas into fillable PDF documents and the extraction of structured data from existing PDFs. It also features advanced capabilities for creating scored asse

This project is a declarative state manager and component library for building complex, interactive forms in React applications. It provides a framework for constructing form interfaces by mapping structured data schemas to modular UI components, ensuring that input state and data integrity are handled consistently across an application. The library distinguishes itself through a schema-driven approach that decouples form structure from rendering logic. By utilizing centralized validation middleware and configuration-based styling, it allows developers to enforce business rules and maintain v

This project is a jQuery plugin and client-side form validator used to verify web form inputs before they are submitted to a server. It employs a rule-based validation engine to check user input against predefined or custom rules to ensure data integrity in the browser. The tool is designed as an ARIA-compliant validation system, using accessibility attributes to link error messages to input fields. This ensures that screen reader users are notified when a field contains an invalid value during the form submission process. The system supports remote server validation via asynchronous HTTP re

re-frame is a functional framework for building single-page applications in ClojureScript. It provides a centralized, immutable database that serves as the single source of truth for the entire application state, enforcing a strict unidirectional data flow where events trigger state transitions and subsequent view updates. The framework distinguishes itself through a reactive signal graph and an interceptor-based middleware pipeline. By treating application logic as a sequence of data-driven events and declarative side effects, it decouples business logic from the view layer. This architectur

This repository is a collection of learning resources, instructional materials, and practical reference implementations for the React library. It provides code snapshots, application boilerplates, and a repository of examples designed to support a structured curriculum for building React applications. The project offers specific implementation guides and samples for managing application state, mapping routes with shared layouts, and creating validated form systems. It includes versioned code snapshots, completed exercise references, and presentation materials to help users validate their prog

This project is a JSON schema form builder and dynamic form generator. It functions as an API-driven data collector that creates customizable input fields and layouts based on JSON schema definitions. The system serves as a schema-based input validator, enforcing data integrity through predefined schemas and providing real-time feedback to users. It allows for the creation of web forms where input types, labels, and placeholders can be modified without changing the source code. The tool manages the end-to-end workflow of interactive user input, covering dynamic form generation, client-side d

This library is a declarative validation framework for Rust that enforces data integrity and business rules on structured data models. It utilizes procedural macros to transform attribute-based annotations into executable validation logic, ensuring that data structures adhere to defined constraints before processing. The framework distinguishes itself by performing validation at compile time, which eliminates runtime overhead and provides strict type checking for all rules. It supports recursive traversal of nested data structures and collections, ensuring that every level of a hierarchy is v

This project is a reactive state management library designed for handling complex form data and validation logic. It utilizes observable-based patterns to synchronize user interface components with underlying data models, ensuring that form states remain consistent throughout an application. The library provides a structured approach to managing form initialization, field tracking, and lifecycle events. The library distinguishes itself through its support for deeply nested data structures and hierarchical composition, allowing for recursive validation and dynamic updates within complex object

imaskjs is a JavaScript input mask library and DOM input manager used to enforce specific patterns, data types, and ranges on user input in real-time. It serves as a data formatting library and input validation tool that transforms raw input values into formatted strings using masks and custom pipes. The project provides dynamic masking capabilities, allowing input patterns to change or switch in real-time based on the characters a user types. It supports complex input constraints including regular expressions, numerical ranges, date-based verification, and character enumerations. The librar

TanStack Form is a cross-framework form state management library that provides typed fields, validation, and submission across React, Vue, Angular, Solid, Lit, Svelte, and Preact. It uses a shared form model that adapts to different UI frameworks while preserving the same validation and submission logic, and offers headless form controls that impose no UI markup, letting developers bring their own inputs and design system. The library distinguishes itself through granular state subscription, where components subscribe to narrow slices of form or field state using reactive primitives, so only

Vuelidate is a model-based validation library for Vue.js applications. It functions as a client-side data validator and validation engine that decouples verification logic from the user interface by checking data models and state objects against defined rules. The system tracks field interactions and marks inputs as dirty to manage when validation messages are triggered. This approach allows the library to provide real-time user input feedback and verify model integrity before data is submitted. The framework covers form state validation, validation error rendering, and the configuration of

React Redux is a global state management bridge and a set of bindings that connect React components to a Redux state store. It serves as a communication layer and state store connector, allowing a declarative user interface to synchronize with a centralized source of truth. The library enables the synchronization of shared global state across an application by providing mechanisms to read state and dispatch actions directly from the view layer. It ensures predictable state transitions by bridging the gap between UI components and the Redux state container. The project covers core capabilitie

This project is a JSON Schema form generator and React UI component that automatically creates web forms based on JSON Schema definitions. It serves as a schema-driven form builder used to transform declarative data definitions into interactive user interfaces for data entry and validation. The tool provides capabilities for dynamic form generation and JSON Schema integration, allowing for the automatic creation of input fields and layouts to avoid manual coding. It implements schema-based validation to ensure user input adheres to standardized JSON Schema rules in real time. The system mana

Vue.Draggable is a component-based library for Vue.js that enables drag-and-drop functionality within web interfaces. It functions as a wrapper for the SortableJS engine, bridging the gap between imperative DOM manipulation and the declarative nature of the Vue.js reactive system. By synchronizing user interface interactions with the underlying data model, it ensures that list reordering and element movement are automatically reflected in the application state. The library supports complex interaction patterns, including the ability to move items between lists, clone elements using keyboard m

Baserow is a no-code relational database and application builder that allows users to create structured data tables and business tools through a visual interface. It functions as a headless REST API data backend and a self-hosted data workspace, providing a platform for managing collaborative databases while maintaining full control over data residency. The platform integrates large language models to serve as an LLM-powered data platform, capable of generating database structures, record content, and technical workflows from natural language. It also acts as a Model Context Protocol server,

EmDash is an open-source content management system built on Astro that combines a visual admin panel with a plugin-driven architecture and server-side rendering. It provides a complete content management system with structured content modeling, a rich text editor using Portable Text format, and a TypeScript API for type-safe content queries. The system supports authentication through passkeys, OAuth 2.1, and external providers, with role-based access control and fine-grained permission scopes. What distinguishes EmDash is its plugin development framework, which supports both native plugins ru