---
createdAt: 2025-08-23
updatedAt: 2026-09-27
priority: 5
title: useIntlayer Hook Documentation | next-intlayer
description: "Use useIntlayer in Next.js to read a dictionary's localized content by key in Client and Server Components."
keywords:
  - useIntlayer
  - dictionary
  - key
  - Intlayer
  - Internationalization
  - Documentation
  - Next.js
  - JavaScript
  - React
slugs:
  - doc
  - packages
  - next-intlayer
  - useIntlayer
history:
  - version: 9.4.0
    date: 2026-08-22
    changes: "Update to Next.js >= 9.4.0 architecture"
  - version: 8.9.0
    date: 2026-05-04
    changes: "Update Solid useIntlayer API usage to direct property access"
  - version: 5.5.10
    date: 2025-06-29
    changes: "Initial history"
author: aymericzip
---

# Next.js Integration: `useIntlayer` Hook Documentation

The `useIntlayer` hook is tailored for Next.js applications to fetch and manage localized content efficiently. This documentation will focus on how to utilize the hook within Next.js projects, ensuring proper localization practices.

## Importing `useIntlayer` in Next.js

Depending on whether you're working on client-side or server-side components in a Next.js application, you can import the `useIntlayer` hook as follows:

- **Client Component:**

  ```typescript codeFormat="typescript"
  import { useIntlayer } from "next-intlayer"; // Used in client-side components
  ```

  ```javascript codeFormat="esm"
  import { useIntlayer } from "next-intlayer"; // Used in client-side components
  ```

  ```javascript codeFormat="commonjs"
  const { useIntlayer } = require("next-intlayer"); // Used in client-side components
  ```

- **Server Component:**

  ```tsx codeFormat="typescript"
  import { useIntlayer } from "next-intlayer/server"; // Used in server-side components
  ```

  ```javascript codeFormat="esm"
  import { useIntlayer } from "next-intlayer/server"; // Used in server-side components
  ```

  ```javascript codeFormat="commonjs"
  const { useIntlayer } = require("next-intlayer/server"); // Used in server-side components
  ```

## Parameters

1. **`key`**: A string identifier for the dictionary key from which you want to retrieve content.
2. **`locale`** (optional): A specific locale to use. If omitted, the hook defaults to the locale set in the client or server context.

## Dictionary Files

It's crucial that all content keys are defined within content declaration files to prevent runtime errors and ensure type safety. This approach also facilitates TypeScript integration for compile-time validation.

Instructions for setting up content declaration files are available [here](https://github.com/aymericzip/intlayer/blob/main/docs/docs/en/dictionary/content_file.md).

- [Content Declaration Files (.content.ts)](https://github.com/aymericzip/intlayer/blob/main/docs/docs/en/dictionary/content_file.md)

## Example Usage in Next.js

Here's how you can implement the `useIntlayer` hook within a Next.js page to dynamically load localized content based on the application's current locale:

<Tabs>
 <Tab label='Intlayer >=9.4' value='>=9.4'>

```tsx fileName="src/pages/[locale]/index.tsx" codeFormat={["typescript", "esm"]}
import { ClientComponentExample } from "@components/ClientComponentExample";
import { ServerComponentExample } from "@components/ServerComponentExample";
import { type NextPageIntlayer } from "next-intlayer";
import { useIntlayer } from "next-intlayer";
import { IntlayerProvider } from "next-intlayer/server";

const HomePage: NextPageIntlayer = async ({ params }) => {
  const { locale } = await params;

  const content = useIntlayer("homepage", locale);

  return (
    <IntlayerProvider locale={locale}>
      <p>{content.introduction}</p>
      <ClientComponentExample />
      <ServerComponentExample />
    </IntlayerProvider>
  );
};
```

 </Tab>
 <Tab label='Intlayer <9.4' value='<9.4'>

```tsx fileName="src/pages/[locale]/index.tsx" codeFormat={["typescript", "esm"]}
import { ClientComponentExample } from "@components/ClientComponentExample";
import { ServerComponentExample } from "@components/ServerComponentExample";
import { type NextPageIntlayer, IntlayerClientProvider } from "next-intlayer";
import { useIntlayer, IntlayerServerProvider } from "next-intlayer/server";

const HomePage: NextPageIntlayer = async ({ params }) => {
  const { locale } = await params;

  const content = useIntlayer("homepage", locale);

  return (
    <>
      <p>{content.introduction}</p>
      <IntlayerClientProvider locale={locale}>
        <ClientComponentExample />
      </IntlayerClientProvider>
      <IntlayerServerProvider locale={locale}>
        <ServerComponentExample />
      </IntlayerServerProvider>
    </>
  );
};
```

 </Tab>
</Tabs>

```tsx fileName="src/components/ClientComponentExample.tsx" codeFormat={["typescript", "esm"]}
"use-client";

import type { FC } from "react";
import { useIntlayer } from "next-intlayer";

const ClientComponentExample: FC = () => {
  const content = useIntlayer("component-content");

  return (
    <div>
      <h1>{content.title}</h1>
      <p>{content.description}</p>
    </div>
  );
};
```

```tsx fileName="src/components/ServerComponentExample.tsx" codeFormat={["typescript", "esm"]}
import type { FC } from "react";
import { useIntlayer } from "next-intlayer/server";

const ServerComponentExample: FC = () => {
  const content = useIntlayer("component-content");

  return (
    <div>
      <h1>{content.title}</h1>
      <p>{content.description}</p>
    </div>
  );
};
```

## Handling Attribute Localization

To localize attributes such as `alt`, `title`, `href`, `aria-label`, etc., ensure you reference the content correctly:

```tsx
<img src={content.image.src.value} alt={content.image.alt.value} />
<img src={content.image.src.toString()} alt={content.image.alt.toString()} />
<img src={String(content.image.src)} alt={String(content.image.alt)} />
```

## Further Information

- **Intlayer Visual Editor**: Learn how to use the visual editor for easier content management [here](https://github.com/aymericzip/intlayer/blob/main/docs/docs/en/intlayer_visual_editor.md).

This documentation outlines the use of the `useIntlayer` hook specifically within Next.js environments, providing a robust solution for managing localization across your Next.js applications.