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Next.js Metadata Generator

The Next.js Metadata Generator creates production-grade, type-safe Next.js App Router metadata configurations, generating static export Metadata objects and dynamic generateMetadata() functions with Open Graph, Twitter cards, and canonical links.

Export Mode:

Title Length

44 chars

Optimal SEO length

Description Length

117 chars

Optimal snippet

Robots Directive

index, follow

Search engine visibility

Framework Target

Next.js App Router

TypeScript 5+ native

44 / 60
117 / 160
Generated Next.js App Router CodeTypeScript
import type { Metadata } from 'next';

export const metadata: Metadata = {
  metadataBase: new URL('https://faisalrafique.com'),
  title: 'Next.js 15 Server Actions Architecture Guide',
  description: 'Deep dive into React 19 Server Actions, optimistic UI mutations, and high-performance caching patterns in Next.js 15.',
  alternates: {
    canonical: 'https://faisalrafique.com/blog/nextjs-15-architecture',
  },
  openGraph: {
    title: 'Next.js 15 Server Actions Architecture Guide',
    description: 'Deep dive into React 19 Server Actions, optimistic UI mutations, and high-performance caching patterns in Next.js 15.',
    url: 'https://faisalrafique.com/blog/nextjs-15-architecture',
    siteName: 'Faisal Rafique',
    type: 'article',
    images: [
      {
        url: 'https://faisalrafique.com/assets/images/about/01.webp',
        width: 1200,
        height: 630,
        alt: 'Next.js 15 Server Actions Architecture Guide',
      },
    ],
  },
  twitter: {
    card: 'summary_large_image',
    title: 'Next.js 15 Server Actions Architecture Guide',
    description: 'Deep dive into React 19 Server Actions, optimistic UI mutations, and high-performance caching patterns in Next.js 15.',
    images: ['https://faisalrafique.com/assets/images/about/01.webp'],
  },
  robots: {
    index: true,
    follow: true,
    googleBot: {
      index: true,
      follow: true,
      'max-video-preview': -1,
      'max-image-preview': 'large',
      'max-snippet': -1,
    },
  },
};

How to use this tool

1. Specify Page Details

Enter page title, meta description, canonical path, and Open Graph image URLs.

2. Choose Mode

Select Static Metadata (`export const metadata: Metadata`) or Dynamic Metadata (`export async function generateMetadata(...)`).

3. Configure Robots & Social

Toggle index/follow directives, Open Graph types (website/article), and Twitter card formats.

4. Copy TypeScript Snippet

Export clean, typed Next.js code formatted for modern App Router page.tsx and layout.tsx files.

Formula or logic used

Next.js App Router Metadata Composition

Next.js merges metadata fields shallowly across the route tree, inheriting from layout.tsx and overriding specific properties in page.tsx.

  • title.template: Use `%s | Brand` in root layout for automatic branding across nested pages.
  • title.absolute: Use absolute titles in leaf pages when overriding root layout templates.
  • alternates.canonical: Always declare absolute HTTPS canonical URLs to avoid duplicate content penalties.
  • metadataBase: Define `metadataBase: new URL('https://domain.com')` in root layout to resolve relative OG images.

Examples

Example 1: Standard Static Blog Post Metadata

Input: Title: 'Next.js 15 Guide', Description: 140 chars, Canonical: '/blog/nextjs-15', Image: '/og.webp'
Calculated Result: Type-safe Metadata object with openGraph, twitter, and canonical alternates.

Statically evaluated at build time for instant server-rendered HTML delivery.

Example 2: Dynamic E-Commerce Product Metadata

Input: Dynamic slug fetch: `generateMetadata({ params }: Props)` querying database.
Calculated Result: Async generateMetadata function with dynamic title, price schema, and product imagery.

Executes in parallel with page data fetching, preventing waterfall delays.

Common use cases

Next.js 13/14/15 App Router Migrations

Convert legacy `next/head` tags into official App Router Metadata API objects.

Dynamic Product & Article Metadata

Scaffold `generateMetadata` functions with dynamic database queries and fallback fallbacks.

SEO Title Template Standardization

Enforce consistent brand suffixes and character boundaries across client web apps.

Social Share Card Configuration

Ensure Open Graph and Twitter Card tags render perfectly across social platforms.

Web Developer Tools

Next.js Sitemap Generator

The Next.js Sitemap Generator constructs idiomatic `app/sitemap.ts` code for the Next.js App Router, combining...

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Next.js Robots.txt Generator

The Next.js Robots.txt Generator creates type-safe `app/robots.ts` files for the Next.js App Router, managing ...

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Technical SEO Tools

Open Graph Preview Checker

The Open Graph Preview Checker inspects social metadata tags and renders real-time, pixel-accurate preview car...

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Frequently asked questions

Where should metadata be declared in Next.js?

Metadata can only be exported from Server Components inside `layout.tsx` or `page.tsx` files. Client components (`'use client'`) cannot export metadata.

What is the difference between static metadata and generateMetadata?

Static metadata uses `export const metadata: Metadata = {...}` and is defined at build time. `generateMetadata` is an async function that receives route parameters and search queries to fetch data dynamically.

Why should I define metadataBase in the root layout?

`metadataBase` defines the base URL for resolving relative image and canonical paths in Open Graph tags, ensuring social platforms always receive absolute HTTPS URLs.

Can I use next/head in Next.js App Router?

No. The `next/head` component from Pages Router is not supported in App Router. You must use the built-in Metadata API instead.

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