> ## Documentation Index
> Fetch the complete documentation index at: https://inertiajs.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# File Uploads

## `FormData` Conversion

When making Inertia requests that include files (even nested files), Inertia will automatically convert the request data into a `FormData` object. This conversion is necessary in order to submit a `multipart/form-data` request via XHR.

If you would like the request to always use a `FormData` object regardless of whether a file is present in the data, you may provide the `forceFormData` option when making the request.

<CodeGroup>
  ```js Vue icon="vuejs" theme={null}
  import { router } from "@inertiajs/vue3";

  router.post("/users", data, {
    forceFormData: true,
  });
  ```

  ```js React icon="react" theme={null}
  import { router } from "@inertiajs/react";

  router.post("/users", data, {
    forceFormData: true,
  });
  ```

  ```js Svelte icon="s" theme={null}
  import { router } from "@inertiajs/svelte";

  router.post("/users", data, {
    forceFormData: true,
  });
  ```
</CodeGroup>

You can learn more about the `FormData` interface via its [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/API/FormData).

## File Upload Example

Let's examine a complete file upload example using Inertia. This example includes both a `name` text input and an `avatar` file input.

<CodeGroup>
  ```vue Vue icon="vuejs" theme={null}
  <script setup>
  import { useForm } from "@inertiajs/vue3";

  const form = useForm({
    name: null,
    avatar: null,
  });

  function submit() {
    form.post("/users");
  }
  </script>

  <template>
    <form @submit.prevent="submit">
      <input type="text" v-model="form.name" />
      <input type="file" @input="form.avatar = $event.target.files[0]" />
      <progress v-if="form.progress" :value="form.progress.percentage" max="100">
        {{ form.progress.percentage }}%
      </progress>
      <button type="submit">Submit</button>
    </form>
  </template>
  ```

  ```jsx React icon="react" theme={null}
  import { useForm } from "@inertiajs/react";

  const { data, setData, post, progress } = useForm({
    name: null,
    avatar: null,
  });

  function submit(e) {
    e.preventDefault();
    post("/users");
  }

  return (
    <form onSubmit={submit}>
      <input
        type="text"
        value={data.name}
        onChange={(e) => setData("name", e.target.value)}
      />
      <input type="file" onChange={(e) => setData("avatar", e.target.files[0])} />
      {progress && (
        <progress value={progress.percentage} max="100">
          {progress.percentage}%
        </progress>
      )}
      <button type="submit">Submit</button>
    </form>
  );
  ```

  ```svelte Svelte icon="s" theme={null}
  <script>
      import { useForm } from '@inertiajs/svelte'

      const form = useForm({
          name: null,
          avatar: null,
      })

      function submit(e) {
          e.preventDefault()
          form.post('/users')
      }
  </script>

  <form onsubmit={submit}>
      <input type="text" bind:value={form.name} />
      <input type="file" oninput={e => form.avatar = e.target.files[0]} />
      {#if form.progress}
          <progress value={form.progress.percentage} max="100">
              {form.progress.percentage}%
          </progress>
      {/if}
      <button type="submit">Submit</button>
  </form>
  ```
</CodeGroup>

This example uses the [Inertia form helper](/v3/the-basics/forms#form-helper) for convenience, since the form helper provides easy access to the current upload progress. However, you are free to submit your forms using [manual Inertia visits](/v3/the-basics/manual-visits) as well.

## Multipart Limitations

Uploading files using a `multipart/form-data` request is not natively supported in some server-side frameworks when using the `PUT`,`PATCH`, or `DELETE` HTTP methods. The simplest workaround for this limitation is to simply upload files using a `POST` request instead.

However, some frameworks, such as [Laravel](https://laravel.com/docs/routing#form-method-spoofing) and [Rails ](https://guides.rubyonrails.org/form_helpers.html#how-do-forms-with-patch-put-or-delete-methods-work-questionmark), support form method spoofing, which allows you to upload the files using `POST`, but have the framework handle the request as a `PUT` or `PATCH` request. This is done by including a `_method` attribute in the data of your request.

<CodeGroup>
  ```js Vue icon="vuejs" theme={null}
  import { router } from "@inertiajs/vue3";

  router.post(`/users/${user.id}`, {
    _method: "put",
    avatar: form.avatar,
  });
  ```

  ```js React icon="react" theme={null}
  import { router } from "@inertiajs/react";

  router.post(`/users/${user.id}`, {
    _method: "put",
    avatar: form.avatar,
  });
  ```

  ```js Svelte icon="s" theme={null}
  import { router } from "@inertiajs/svelte";

  router.post(`/users/${user.id}`, {
    _method: "put",
    avatar: form.avatar,
  });
  ```
</CodeGroup>