Framework-agnostic type-safe form engine — typed field trees, sync/async/cross-field validation, drafts and undo/redo over a minimal reactive contract.

A powerful TypeScript schema validation with advanced conditional logic, cross-field validation, and static type inference.

A couple of utils that allows to convert json schema to yup schema and validate data against it. Core features: cross-field validation, internationalization

Reactive form engine for deep, controlled enterprise forms. A plain-JavaScript signal graph owns the state; React only paints. Deep type-safety, auto-wired cross-field validation, fine-grained performance.

React Form Component

Wrap zod validation errors in user-friendly readable messages

Cross platform child_process#spawn and child_process#spawnSync

A set of opinionated helpers built on top of the Constraint Validation API

Form component and utils for easy form validation in remix

Conform helpers for integrating with Zod

Conform view adapter for react

Shared types, utilities, and services for Microsoft Managed Apps packages

JS client for DatoCMS REST Content Management API

React Form Renderer. Data Driven Forms converts JSON form definitions into fully functional React forms.

Framework-agnostic, contract-first API layer built on mjst JSON Schema tooling. Typed routes, fast request/response validation, and OpenAPI 3.2 generation with no extra code — adapters for fetch (Hono, Next.js, Bun, Workers) and Node (Express, Fastify).

React Hook Form validation resolvers: Yup, Joi, Superstruct, Zod, Vest, Class Validator, io-ts, Nope, computed-types, TypeBox, arktype, Typanion, Effect-TS and VineJS

Universal WHATWG Fetch API for Node, Browsers and React Native

Schema for data modeling & validation

Run scripts that set and use environment variables across platforms

Store localized fields in an array to save on attributes