react-code-dataset
/
next.js
/docs
/01-app
/03-api-reference
/03-file-conventions
/01-metadata
/opengraph-image.mdx
| --- | |
| title: opengraph-image and twitter-image | |
| description: API Reference for the Open Graph Image and Twitter Image file conventions. | |
| --- | |
| The `opengraph-image` and `twitter-image` file conventions allow you to set Open Graph and Twitter images for a route segment. | |
| They are useful for setting the images that appear on social networks and messaging apps when a user shares a link to your site. | |
| There are two ways to set Open Graph and Twitter images: | |
| - [Using image files (.jpg, .png, .gif)](#image-files-jpg-png-gif) | |
| - [Using code to generate images (.js, .ts, .tsx)](#generate-images-using-code-js-ts-tsx) | |
| ## Image files (.jpg, .png, .gif) | |
| Use an image file to set a route segment's shared image by placing an `opengraph-image` or `twitter-image` image file in the segment. | |
| Next.js will evaluate the file and automatically add the appropriate tags to your app's `<head>` element. | |
| | File convention | Supported file types | | |
| | ----------------------------------------------- | ------------------------------- | | |
| | [`opengraph-image`](#opengraph-image) | `.jpg`, `.jpeg`, `.png`, `.gif` | | |
| | [`twitter-image`](#twitter-image) | `.jpg`, `.jpeg`, `.png`, `.gif` | | |
| | [`opengraph-image.alt`](#opengraph-imagealttxt) | `.txt` | | |
| | [`twitter-image.alt`](#twitter-imagealttxt) | `.txt` | | |
| > **Good to know**: | |
| > | |
| > The `twitter-image` file size must not exceed [5MB](https://developer.x.com/en/docs/x-for-websites/cards/overview/summary), and the `opengraph-image` file size must not exceed [8MB](https://developers.facebook.com/docs/sharing/webmasters/images). If the image file size exceeds these limits, the build will fail. | |
| ### `opengraph-image` | |
| Add an `opengraph-image.(jpg|jpeg|png|gif)` image file to any route segment. | |
| ```html filename="<head> output" | |
| <meta property="og:image" content="<generated>" /> | |
| <meta property="og:image:type" content="<generated>" /> | |
| <meta property="og:image:width" content="<generated>" /> | |
| <meta property="og:image:height" content="<generated>" /> | |
| ``` | |
| ### `twitter-image` | |
| Add a `twitter-image.(jpg|jpeg|png|gif)` image file to any route segment. | |
| ```html filename="<head> output" | |
| <meta name="twitter:image" content="<generated>" /> | |
| <meta name="twitter:image:type" content="<generated>" /> | |
| <meta name="twitter:image:width" content="<generated>" /> | |
| <meta name="twitter:image:height" content="<generated>" /> | |
| ``` | |
| ### `opengraph-image.alt.txt` | |
| Add an accompanying `opengraph-image.alt.txt` file in the same route segment as the `opengraph-image.(jpg|jpeg|png|gif)` image it's alt text. | |
| ```txt filename="opengraph-image.alt.txt" | |
| About Acme | |
| ``` | |
| ```html filename="<head> output" | |
| <meta property="og:image:alt" content="About Acme" /> | |
| ``` | |
| ### `twitter-image.alt.txt` | |
| Add an accompanying `twitter-image.alt.txt` file in the same route segment as the `twitter-image.(jpg|jpeg|png|gif)` image it's alt text. | |
| ```txt filename="twitter-image.alt.txt" | |
| About Acme | |
| ``` | |
| ```html filename="<head> output" | |
| <meta property="twitter:image:alt" content="About Acme" /> | |
| ``` | |
| ## Generate images using code (.js, .ts, .tsx) | |
| In addition to using [literal image files](#image-files-jpg-png-gif), you can programmatically **generate** images using code. | |
| Generate a route segment's shared image by creating an `opengraph-image` or `twitter-image` route that default exports a function. | |
| | File convention | Supported file types | | |
| | ----------------- | -------------------- | | |
| | `opengraph-image` | `.js`, `.ts`, `.tsx` | | |
| | `twitter-image` | `.js`, `.ts`, `.tsx` | | |
| > **Good to know**: | |
| > | |
| > - By default, generated images are [**statically optimized**](/docs/app/getting-started/partial-prerendering#static-rendering) (generated at build time and cached) unless they use [Dynamic APIs](/docs/app/getting-started/partial-prerendering#dynamic-rendering#dynamic-apis) or uncached data. | |
| > - You can generate multiple Images in the same file using [`generateImageMetadata`](/docs/app/api-reference/functions/generate-image-metadata). | |
| > - `opengraph-image.js` and `twitter-image.js` are special Route Handlers that is cached by default unless it uses a [Dynamic API](/docs/app/guides/caching#dynamic-apis) or [dynamic config](/docs/app/guides/caching#segment-config-options) option. | |
| The easiest way to generate an image is to use the [ImageResponse](/docs/app/api-reference/functions/image-response) API from `next/og`. | |
| ```tsx filename="app/about/opengraph-image.tsx" switcher | |
| import { ImageResponse } from 'next/og' | |
| import { readFile } from 'node:fs/promises' | |
| import { join } from 'node:path' | |
| // Image metadata | |
| export const alt = 'About Acme' | |
| export const size = { | |
| width: 1200, | |
| height: 630, | |
| } | |
| export const contentType = 'image/png' | |
| // Image generation | |
| export default async function Image() { | |
| // Font loading, process.cwd() is Next.js project directory | |
| const interSemiBold = await readFile( | |
| join(process.cwd(), 'assets/Inter-SemiBold.ttf') | |
| ) | |
| return new ImageResponse( | |
| ( | |
| // ImageResponse JSX element | |
| <div | |
| style={{ | |
| fontSize: 128, | |
| background: 'white', | |
| width: '100%', | |
| height: '100%', | |
| display: 'flex', | |
| alignItems: 'center', | |
| justifyContent: 'center', | |
| }} | |
| > | |
| About Acme | |
| </div> | |
| ), | |
| // ImageResponse options | |
| { | |
| // For convenience, we can re-use the exported opengraph-image | |
| // size config to also set the ImageResponse's width and height. | |
| ...size, | |
| fonts: [ | |
| { | |
| name: 'Inter', | |
| data: interSemiBold, | |
| style: 'normal', | |
| weight: 400, | |
| }, | |
| ], | |
| } | |
| ) | |
| } | |
| ``` | |
| ```jsx filename="app/about/opengraph-image.js" switcher | |
| import { ImageResponse } from 'next/og' | |
| import { readFile } from 'node:fs/promises' | |
| import { join } from 'node:path' | |
| // Image metadata | |
| export const alt = 'About Acme' | |
| export const size = { | |
| width: 1200, | |
| height: 630, | |
| } | |
| export const contentType = 'image/png' | |
| // Image generation | |
| export default async function Image() { | |
| // Font loading, process.cwd() is Next.js project directory | |
| const interSemiBold = await readFile( | |
| join(process.cwd(), 'assets/Inter-SemiBold.ttf') | |
| ) | |
| return new ImageResponse( | |
| ( | |
| // ImageResponse JSX element | |
| <div | |
| style={{ | |
| fontSize: 128, | |
| background: 'white', | |
| width: '100%', | |
| height: '100%', | |
| display: 'flex', | |
| alignItems: 'center', | |
| justifyContent: 'center', | |
| }} | |
| > | |
| About Acme | |
| </div> | |
| ), | |
| // ImageResponse options | |
| { | |
| // For convenience, we can re-use the exported opengraph-image | |
| // size config to also set the ImageResponse's width and height. | |
| ...size, | |
| fonts: [ | |
| { | |
| name: 'Inter', | |
| data: interSemiBold, | |
| style: 'normal', | |
| weight: 400, | |
| }, | |
| ], | |
| } | |
| ) | |
| } | |
| ``` | |
| ```html filename="<head> output" | |
| <meta property="og:image" content="<generated>" /> | |
| <meta property="og:image:alt" content="About Acme" /> | |
| <meta property="og:image:type" content="image/png" /> | |
| <meta property="og:image:width" content="1200" /> | |
| <meta property="og:image:height" content="630" /> | |
| ``` | |
| ### Props | |
| The default export function receives the following props: | |
| #### `params` (optional) | |
| An object containing the [dynamic route parameters](/docs/app/api-reference/file-conventions/dynamic-routes) object from the root segment down to the segment `opengraph-image` or `twitter-image` is colocated in. | |
| ```tsx filename="app/shop/[slug]/opengraph-image.tsx" switcher | |
| export default function Image({ params }: { params: { slug: string } }) { | |
| // ... | |
| } | |
| ``` | |
| ```jsx filename="app/shop/[slug]/opengraph-image.js" switcher | |
| export default function Image({ params }) { | |
| // ... | |
| } | |
| ``` | |
| | Route | URL | `params` | | |
| | ------------------------------------------ | ----------- | ------------------------- | | |
| | `app/shop/opengraph-image.js` | `/shop` | `undefined` | | |
| | `app/shop/[slug]/opengraph-image.js` | `/shop/1` | `{ slug: '1' }` | | |
| | `app/shop/[tag]/[item]/opengraph-image.js` | `/shop/1/2` | `{ tag: '1', item: '2' }` | | |
| ### Returns | |
| The default export function should return a `Blob` | `ArrayBuffer` | `TypedArray` | `DataView` | `ReadableStream` | `Response`. | |
| > **Good to know**: `ImageResponse` satisfies this return type. | |
| ### Config exports | |
| You can optionally configure the image's metadata by exporting `alt`, `size`, and `contentType` variables from `opengraph-image` or `twitter-image` route. | |
| | Option | Type | | |
| | ----------------------------- | --------------------------------------------------------------------------------------------------------------- | | |
| | [`alt`](#alt) | `string` | | |
| | [`size`](#size) | `{ width: number; height: number }` | | |
| | [`contentType`](#contenttype) | `string` - [image MIME type](https://developer.mozilla.org/docs/Web/HTTP/Basics_of_HTTP/MIME_types#image_types) | | |
| #### `alt` | |
| ```tsx filename="opengraph-image.tsx | twitter-image.tsx" switcher | |
| export const alt = 'My images alt text' | |
| export default function Image() {} | |
| ``` | |
| ```jsx filename="opengraph-image.js | twitter-image.js" switcher | |
| export const alt = 'My images alt text' | |
| export default function Image() {} | |
| ``` | |
| ```html filename="<head> output" | |
| <meta property="og:image:alt" content="My images alt text" /> | |
| ``` | |
| #### `size` | |
| ```tsx filename="opengraph-image.tsx | twitter-image.tsx" switcher | |
| export const size = { width: 1200, height: 630 } | |
| export default function Image() {} | |
| ``` | |
| ```jsx filename="opengraph-image.js | twitter-image.js" switcher | |
| export const size = { width: 1200, height: 630 } | |
| export default function Image() {} | |
| ``` | |
| ```html filename="<head> output" | |
| <meta property="og:image:width" content="1200" /> | |
| <meta property="og:image:height" content="630" /> | |
| ``` | |
| #### `contentType` | |
| ```tsx filename="opengraph-image.tsx | twitter-image.tsx" switcher | |
| export const contentType = 'image/png' | |
| export default function Image() {} | |
| ``` | |
| ```jsx filename="opengraph-image.js | twitter-image.js" switcher | |
| export const contentType = 'image/png' | |
| export default function Image() {} | |
| ``` | |
| ```html filename="<head> output" | |
| <meta property="og:image:type" content="image/png" /> | |
| ``` | |
| #### Route Segment Config | |
| `opengraph-image` and `twitter-image` are specialized [Route Handlers](/docs/app/api-reference/file-conventions/route) that can use the same [route segment configuration](/docs/app/api-reference/file-conventions/route-segment-config) options as Pages and Layouts. | |
| ### Examples | |
| #### Using external data | |
| This example uses the `params` object and external data to generate the image. | |
| > **Good to know**: | |
| > By default, this generated image will be [statically optimized](/docs/app/getting-started/partial-prerendering#static-rendering). You can configure the individual `fetch` [`options`](/docs/app/api-reference/functions/fetch) or route segments [options](/docs/app/api-reference/file-conventions/route-segment-config#revalidate) to change this behavior. | |
| ```tsx filename="app/posts/[slug]/opengraph-image.tsx" switcher | |
| import { ImageResponse } from 'next/og' | |
| export const alt = 'About Acme' | |
| export const size = { | |
| width: 1200, | |
| height: 630, | |
| } | |
| export const contentType = 'image/png' | |
| export default async function Image({ params }: { params: { slug: string } }) { | |
| const post = await fetch(`https://.../posts/${params.slug}`).then((res) => | |
| res.json() | |
| ) | |
| return new ImageResponse( | |
| ( | |
| <div | |
| style={{ | |
| fontSize: 48, | |
| background: 'white', | |
| width: '100%', | |
| height: '100%', | |
| display: 'flex', | |
| alignItems: 'center', | |
| justifyContent: 'center', | |
| }} | |
| > | |
| {post.title} | |
| </div> | |
| ), | |
| { | |
| ...size, | |
| } | |
| ) | |
| } | |
| ``` | |
| ```jsx filename="app/posts/[slug]/opengraph-image.js" switcher | |
| import { ImageResponse } from 'next/og' | |
| export const alt = 'About Acme' | |
| export const size = { | |
| width: 1200, | |
| height: 630, | |
| } | |
| export const contentType = 'image/png' | |
| export default async function Image({ params }) { | |
| const post = await fetch(`https://.../posts/${params.slug}`).then((res) => | |
| res.json() | |
| ) | |
| return new ImageResponse( | |
| ( | |
| <div | |
| style={{ | |
| fontSize: 48, | |
| background: 'white', | |
| width: '100%', | |
| height: '100%', | |
| display: 'flex', | |
| alignItems: 'center', | |
| justifyContent: 'center', | |
| }} | |
| > | |
| {post.title} | |
| </div> | |
| ), | |
| { | |
| ...size, | |
| } | |
| ) | |
| } | |
| ``` | |
| #### Using Node.js runtime with local assets | |
| This example uses the Node.js runtime to fetch a local image on the file system and passes it as an `ArrayBuffer` to the `src` attribute of an `<img>` element. The local asset should be placed relative to the root of your project, rather than the location of the example source file. | |
| ```tsx filename="app/opengraph-image.tsx" switcher | |
| import { ImageResponse } from 'next/og' | |
| import { join } from 'node:path' | |
| import { readFile } from 'node:fs/promises' | |
| export default async function Image() { | |
| const logoData = await readFile(join(process.cwd(), 'logo.png')) | |
| const logoSrc = Uint8Array.from(logoData).buffer | |
| return new ImageResponse( | |
| ( | |
| <div | |
| style={{ | |
| display: 'flex', | |
| alignItems: 'center', | |
| justifyContent: 'center', | |
| }} | |
| > | |
| <img src={logoSrc} height="100" /> | |
| </div> | |
| ) | |
| ) | |
| } | |
| ``` | |
| ```jsx filename="app/opengraph-image.js" switcher | |
| import { ImageResponse } from 'next/og' | |
| import { join } from 'node:path' | |
| import { readFile } from 'node:fs/promises' | |
| export default async function Image() { | |
| const logoData = await readFile(join(process.cwd(), 'logo.png')) | |
| const logoSrc = Uint8Array.from(logoData).buffer | |
| return new ImageResponse( | |
| ( | |
| <div | |
| style={{ | |
| display: 'flex', | |
| alignItems: 'center', | |
| justifyContent: 'center', | |
| }} | |
| > | |
| <img src={logoSrc} height="100" /> | |
| </div> | |
| ) | |
| ) | |
| } | |
| ``` | |
| ## Version History | |
| | Version | Changes | | |
| | --------- | ------------------------------------------------- | | |
| | `v13.3.0` | `opengraph-image` and `twitter-image` introduced. | | |