Performant, flexible and extensible forms with easy to use validation.
React Hook Form ResolversThis function allows you to use any external validation library such as Yup, Zod, Joi, Vest, Ajv and many others. The goal is to make sure you can seamlessly integrate whichever validation library you prefer. If you're not using a library, you can always write your own logic to validate your forms.
Install your preferred validation library alongside @hookform/resolvers.
npm install @hookform/resolvers # npm
yarn add @hookform/resolvers # yarn
pnpm install @hookform/resolvers # pnpm
bun install @hookform/resolvers # bun
firstError | all Arktype ✅ firstError class-validator ✅ firstError | all computed-types ✅ firstError Effect ✅ firstError | all fluentvalidation-ts ❌ firstError io-ts ✅ firstError joi ❌ firstError | all Nope ❌ firstError Standard Schema ✅ firstError | all Superstruct ✅ firstError typanion ✅ firstError typebox ✅ firstError | all typeschema ❌ firstError | all valibot ✅ firstError | all vest ❌ firstError | all vine ✅ firstError | all yup ✅ firstError | all zod ✅ firstError | all
Most of the resolvers can infer the output type from the schema. See comparison table for more details.
useForm<Input, Context, Output>()
Example:
import { useForm } from 'react-hook-form';
import { zodResolver } from '@hookform/resolvers/zod';
import { z } from 'zod'; // or 'zod/v4'
const schema = z.object({
id: z.number(),
});
// Automatically infers the output type from the schema
useForm({
resolver: zodResolver(schema),
});
// Force the output type
useForm<z.input<typeof schema>, any, z.output<typeof schema>>({
resolver: zodResolver(schema),
});
type Options = {
mode: 'async' | 'sync',
raw?: boolean
}
resolver(schema: object, schemaOptions?: object, resolverOptions: Options)
object ✓ validation schema schemaOptions object validation library schema options resolverOptions object resolver options, async is the default mode
Dead simple Object schema validation.
import { useForm } from 'react-hook-form';
import { yupResolver } from '@hookform/resolvers/yup';
import * as yup from 'yup';
const schema = yup
.object()
.shape({
name: yup.string().required(),
age: yup.number().required(),
})
.required();
const App = () => {
const { register, handleSubmit } = useForm({
resolver: yupResolver(schema),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('name')} />
<input type="number" {...register('age')} />
<input type="submit" />
</form>
);
};
TypeScript-first schema validation with static type inference
⚠️ Example below uses the
valueAsNumber, which requiresreact-hook-formv6.12.0 (released Nov 28, 2020) or later.
import { useForm } from 'react-hook-form';
import { zodResolver } from '@hookform/resolvers/zod';
import { z } from 'zod'; // or 'zod/v4'
const schema = z.object({
name: z.string().min(1, { message: 'Required' }),
age: z.number().min(10),
});
const App = () => {
const {
register,
handleSubmit,
formState: { errors },
} = useForm({
resolver: zodResolver(schema),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('name')} />
{errors.name?.message && <p>{errors.name?.message}</p>}
<input type="number" {...register('age', { valueAsNumber: true })} />
{errors.age?.message && <p>{errors.age?.message}</p>}
<input type="submit" />
</form>
);
};
A simple and composable way to validate data in JavaScript (or TypeScript).
import { useForm } from 'react-hook-form';
import { superstructResolver } from '@hookform/resolvers/superstruct';
import { object, string, number } from 'superstruct';
const schema = object({
name: string(),
age: number(),
});
const App = () => {
const { register, handleSubmit } = useForm({
resolver: superstructResolver(schema),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('name')} />
<input type="number" {...register('age', { valueAsNumber: true })} />
<input type="submit" />
</form>
);
};
The most powerful data validation library for JS.
import { useForm } from 'react-hook-form';
import { joiResolver } from '@hookform/resolvers/joi';
import Joi from 'joi';
const schema = Joi.object({
name: Joi.string().required(),
age: Joi.number().required(),
});
const App = () => {
const { register, handleSubmit } = useForm({
resolver: joiResolver(schema),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('name')} />
<input type="number" {...register('age')} />
<input type="submit" />
</form>
);
};
Vest 🦺 Declarative Validation Testing.
import { useForm } from 'react-hook-form';
import { vestResolver } from '@hookform/resolvers/vest';
import { create, test, enforce } from 'vest';
const validationSuite = create((data = {}) => {
test('username', 'Username is required', () => {
enforce(data.username).isNotEmpty();
});
test('password', 'Password is required', () => {
enforce(data.password).isNotEmpty();
});
});
const App = () => {
const { register, handleSubmit, errors } = useForm({
resolver: vestResolver(validationSuite),
});
return (
<form onSubmit={handleSubmit((data) => console.log(data))}>
<input {...register('username')} />
<input type="password" {...register('password')} />
<input type="submit" />
</form>
);
};
Decorator-based property validation for classes.
⚠️ Remember to add these options to your
tsconfig.json!
"strictPropertyInitialization": false,
"experimentalDecorators": true
import { useForm } from 'react-hook-form';
import { classValidatorResolver } from '@hookform/resolvers/class-validator';
import { Length, Min, IsEmail } from 'class-validator';
class User {
@Length(2, 30)
username: string;
@IsEmail()
email: string;
}
const resolver = classValidatorResolver(User);
const App = () => {
const {
register,
handleSubmit,
formState: { errors },
} = useForm<User>({ resolver });
return (
<form onSubmit={handleSubmit((data) => console.log(data))}>
<input type="text" {...register('username')} />
{errors.username && <span>{errors.username.message}</span>}
<input type="text" {...register('email')} />
{errors.email && <span>{errors.email.message}</span>}
<input type="submit" value="Submit" />
</form>
);
};
Validate your data with powerful decoders.
import React from 'react';
import { useForm } from 'react-hook-form';
import { ioTsResolver } from '@hookform/resolvers/io-ts';
import t from 'io-ts';
// you don't have to use io-ts-types, but it's very useful
import tt from 'io-ts-types';
const schema = t.type({
username: t.string,
age: tt.NumberFromString,
});
const App = () => {
const { register, handleSubmit } = useForm({
resolver: ioTsResolver(schema),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('username')} />
<input type="number" {...register('age')} />
<input type="submit" />
</form>
);
};
export default App;
A small, simple, and fast JS validator
import { useForm } from 'react-hook-form';
import { nopeResolver } from '@hookform/resolvers/nope';
import Nope from 'nope-validator';
const schema = Nope.object().shape({
name: Nope.string().required(),
age: Nope.number().required(),
});
const App = () => {
const { register, handleSubmit } = useForm({
resolver: nopeResolver(schema),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('name')} />
<input type="number" {...register('age')} />
<input type="submit" />
</form>
);
};
TypeScript-first schema validation with static type inference
import { useForm } from 'react-hook-form';
import { computedTypesResolver } from '@hookform/resolvers/computed-types';
import Schema, { number, string } from 'computed-types';
const schema = Schema({
username: string.min(1).error('username field is required'),
age: number,
});
const App = () => {
const {
register,
handleSubmit,
formState: { errors },
} = useForm({
resolver: computedTypesResolver(schema),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('name')} />
{errors.name?.message && <p>{errors.name?.message}</p>}
<input type="number" {...register('age', { valueAsNumber: true })} />
{errors.age?.message && <p>{errors.age?.message}</p>}
<input type="submit" />
</form>
);
};
Static and runtime type assertion library with no dependencies
import { useForm } from 'react-hook-form';
import { typanionResolver } from '@hookform/resolvers/typanion';
import * as t from 'typanion';
const isUser = t.isObject({
username: t.applyCascade(t.isString(), [t.hasMinLength(1)]),
age: t.applyCascade(t.isNumber(), [
t.isInteger(),
t.isInInclusiveRange(1, 100),
]),
});
const App = () => {
const {
register,
handleSubmit,
formState: { errors },
} = useForm({
resolver: typanionResolver(isUser),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('name')} />
{errors.name?.message && <p>{errors.name?.message}</p>}
<input type="number" {...register('age')} />
{errors.age?.message && <p>{errors.age?.message}</p>}
<input type="submit" />
</form>
);
};
The fastest JSON validator for Node.js and browser
import { useForm } from 'react-hook-form';
import { ajvResolver } from '@hookform/resolvers/ajv';
// must use `minLength: 1` to implement required field
const schema = {
type: 'object',
properties: {
username: {
type: 'string',
minLength: 1,
errorMessage: { minLength: 'username field is required' },
},
password: {
type: 'string',
minLength: 1,
errorMessage: { minLength: 'password field is required' },
},
},
required: ['username', 'password'],
additionalProperties: false,
};
const App = () => {
const {
register,
handleSubmit,
formState: { errors },
} = useForm({
resolver: ajvResolver(schema),
});
return (
<form onSubmit={handleSubmit((data) => console.log(data))}>
<input {...register('username')} />
{errors.username && <span>{errors.username.message}</span>}
<input {...register('password')} />
{errors.password && <span>{errors.password.message}</span>}
<button type="submit">submit</button>
</form>
);
};
JSON Schema Type Builder with Static Type Resolution for TypeScript
import { useForm } from 'react-hook-form';
import { typeboxResolver } from '@hookform/resolvers/typebox';
import { Type } from '@sinclair/typebox';
const schema = Type.Object({
username: Type.String({ minLength: 1 }),
password: Type.String({ minLength: 1 }),
});
const App = () => {
const { register, handleSubmit } = useForm({
resolver: typeboxResolver(schema),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('username')} />
<input type="password" {...register('password')} />
<input type="submit" />
</form>
);
};
A high-performance JIT of TypeBox, read more
import { useForm } from 'react-hook-form';
import { typeboxResolver } from '@hookform/resolvers/typebox';
import { Type } from '@sinclair/typebox';
import { TypeCompiler } from '@sinclair/typebox/compiler';
const schema = Type.Object({
username: Type.String({ minLength: 1 }),
password: Type.String({ minLength: 1 }),
});
const typecheck = TypeCompiler.Compile(schema);
const App = () => {
const { register, handleSubmit } = useForm({
resolver: typeboxResolver(typecheck),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('username')} />
<input type="password" {...register('password')} />
<input type="submit" />
</form>
);
};
TypeScript's 1:1 validator, optimized from editor to runtime
import { useForm } from 'react-hook-form';
import { arktypeResolver } from '@hookform/resolvers/arktype';
import { type } from 'arktype';
const schema = type({
username: 'string>1',
password: 'string>1',
});
const App = () => {
const { register, handleSubmit } = useForm({
resolver: arktypeResolver(schema),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('username')} />
<input type="password" {...register('password')} />
<input type="submit" />
</form>
);
};
The modular and type safe schema library for validating structural data
import { useForm } from 'react-hook-form';
import { valibotResolver } from '@hookform/resolvers/valibot';
import * as v from 'valibot';
const schema = v.object({
username: v.pipe(
v.string('username is required'),
v.minLength(3, 'Needs to be at least 3 characters'),
v.endsWith('cool', 'Needs to end with `cool`'),
),
password: v.string('password is required'),
});
const App = () => {
const { register, handleSubmit } = useForm({
resolver: valibotResolver(schema),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('username')} />
<input type="password" {...register('password')} />
<input type="submit" />
</form>
);
};
Universal adapter for schema validation, compatible with any validation library
import { useForm } from 'react-hook-form';
import { typeschemaResolver } from '@hookform/resolvers/typeschema';
import { z } from 'zod';
// Use your favorite validation library
const schema = z.object({
username: z.string().min(1, { message: 'Required' }),
password: z.number().min(1, { message: 'Required' }),
});
const App = () => {
const { register, handleSubmit } = useForm({
resolver: typeschemaResolver(schema),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('username')} />
<input type="password" {...register('password')} />
<input type="submit" />
</form>
);
};
A powerful TypeScript framework that provides a fully-fledged functional effect system with a rich standard library.
import React from 'react';
import { useForm } from 'react-hook-form';
import { effectTsResolver } from '@hookform/resolvers/effect-ts';
import { Schema } from 'effect';
const schema = Schema.Struct({
username: Schema.String.pipe(
Schema.nonEmptyString({ message: () => 'username required' }),
),
password: Schema.String.pipe(
Schema.nonEmptyString({ message: () => 'password required' }),
),
});
type FormData = typeof schema.Type;
interface Props {
onSubmit: (data: FormData) => void;
}
function TestComponent({ onSubmit }: Props) {
const {
register,
handleSubmit,
formState: { errors },
// provide generic if TS has issues inferring types
} = useForm<FormData>({
resolver: effectTsResolver(schema),
});
return (
<form onSubmit={handleSubmit(onSubmit)}>
<input {...register('username')} />
{errors.username && <span role="alert">{errors.username.message}</span>}
<input {...register('password')} />
{errors.password && <span role="alert">{errors.password.message}</span>}
<button type="submit">submit</button>
</form>
);
}
VineJS is a form data validation library for Node.js
import { useForm } from 'react-hook-form';
import { vineResolver } from '@hookform/resolvers/vine';
import vine from '@vinejs/vine';
const schema = vine.compile(
vine.object({
username: vine.string().minLength(1),
password: vine.string().minLength(1),
}),
);
const App = () => {
const { register, handleSubmit } = useForm({
resolver: vineResolver(schema),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('username')} />
{errors.username && <span role="alert">{errors.username.message}</span>}
<input {...register('password')} />
{errors.password && <span role="alert">{errors.password.message}</span>}
<button type="submit">submit</button>
</form>
);
};
A TypeScript-first library for building strongly-typed validation rules
import { useForm } from 'react-hook-form';
import { fluentValidationResolver } from '@hookform/resolvers/fluentvalidation-ts';
import { Validator } from 'fluentvalidation-ts';
class FormDataValidator extends Validator<FormData> {
constructor() {
super();
this.ruleFor('username')
.notEmpty()
.withMessage('username is a required field');
this.ruleFor('password')
.notEmpty()
.withMessage('password is a required field');
}
}
const App = () => {
const { register, handleSubmit } = useForm({
resolver: fluentValidationResolver(new FormDataValidator()),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('username')} />
{errors.username && <span role="alert">{errors.username.message}</span>}
<input {...register('password')} />
{errors.password && <span role="alert">{errors.password.message}</span>}
<button type="submit">submit</button>
</form>
);
};
A standard interface for TypeScript schema validation libraries
Example zod
import { useForm } from 'react-hook-form';
import { standardSchemaResolver } from '@hookform/resolvers/standard-schema';
import { z } from 'zod';
const schema = z.object({
name: z.string().min(1, { message: 'Required' }),
age: z.number().min(10),
});
const App = () => {
const {
register,
handleSubmit,
formState: { errors },
} = useForm({
resolver: standardSchemaResolver(schema),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('name')} />
{errors.name?.message && <p>{errors.name?.message}</p>}
<input type="number" {...register('age', { valueAsNumber: true })} />
{errors.age?.message && <p>{errors.age?.message}</p>}
<input type="submit" />
</form>
);
};
Example arkType
import { useForm } from 'react-hook-form';
import { standardSchemaResolver } from '@hookform/resolvers/standard-schema';
import { type } from 'arktype';
const schema = type({
username: 'string>1',
password: 'string>1',
});
const App = () => {
const { register, handleSubmit } = useForm({
resolver: standardSchemaResolver(schema),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('username')} />
<input type="password" {...register('password')} />
<input type="submit" />
</form>
);
};
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