# useForm

# Function: useForm()

```ts
function useForm<TFormData, TOnMount, TOnChange, TOnChangeAsync, TOnBlur, TOnBlurAsync, TOnSubmit, TOnSubmitAsync, TOnDynamic, TOnDynamicAsync, TOnServer, TSubmitMeta>(opts?): ReactFormExtendedApi<TFormData, TOnMount, TOnChange, TOnChangeAsync, TOnBlur, TOnBlurAsync, TOnSubmit, TOnSubmitAsync, TOnDynamic, TOnDynamicAsync, TOnServer, TSubmitMeta>;
```

Defined in: [packages/react-form/src/useForm.tsx:158](https://github.com/TanStack/form/blob/main/packages/react-form/src/useForm.tsx#L158)

A custom React Hook that returns an extended instance of the `FormApi` class.

This API encapsulates all the necessary functionalities related to the form. It allows you to manage form state, handle submissions, and interact with form fields

## Type Parameters

### TFormData

`TFormData`

### TOnMount

`TOnMount` *extends* `FormValidateOrFn`\<`TFormData`\> \| `undefined`

### TOnChange

`TOnChange` *extends* `FormValidateOrFn`\<`TFormData`\> \| `undefined`

### TOnChangeAsync

`TOnChangeAsync` *extends* `FormAsyncValidateOrFn`\<`TFormData`\> \| `undefined`

### TOnBlur

`TOnBlur` *extends* `FormValidateOrFn`\<`TFormData`\> \| `undefined`

### TOnBlurAsync

`TOnBlurAsync` *extends* `FormAsyncValidateOrFn`\<`TFormData`\> \| `undefined`

### TOnSubmit

`TOnSubmit` *extends* `FormValidateOrFn`\<`TFormData`\> \| `undefined`

### TOnSubmitAsync

`TOnSubmitAsync` *extends* `FormAsyncValidateOrFn`\<`TFormData`\> \| `undefined`

### TOnDynamic

`TOnDynamic` *extends* `FormValidateOrFn`\<`TFormData`\> \| `undefined`

### TOnDynamicAsync

`TOnDynamicAsync` *extends* `FormAsyncValidateOrFn`\<`TFormData`\> \| `undefined`

### TOnServer

`TOnServer` *extends* `FormAsyncValidateOrFn`\<`TFormData`\> \| `undefined`

### TSubmitMeta

`TSubmitMeta`

## Parameters

### opts?

`FormOptions`\<`TFormData`, `TOnMount`, `TOnChange`, `TOnChangeAsync`, `TOnBlur`, `TOnBlurAsync`, `TOnSubmit`, `TOnSubmitAsync`, `TOnDynamic`, `TOnDynamicAsync`, `TOnServer`, `TSubmitMeta`\>

## Returns

[`ReactFormExtendedApi`](../type-aliases/ReactFormExtendedApi.md)\<`TFormData`, `TOnMount`, `TOnChange`, `TOnChangeAsync`, `TOnBlur`, `TOnBlurAsync`, `TOnSubmit`, `TOnSubmitAsync`, `TOnDynamic`, `TOnDynamicAsync`, `TOnServer`, `TSubmitMeta`\>