Where should I place the JSON-LD script tag in Next.js 15 App Router?

Schema generator: Next.js 15 & React 19

Next.js 15 Software & SaaS Schema Architect

Bottom line

SoftwareApplication Schema allows developer tools, cloud SaaS platforms, and mobile apps to display verified software categories, operating system compatibility, trial pricing, and developer author entities. SchemaCraft provides server-side ready script tags designed for Next.js App Router.

What this markup doesSoftwareApplication properties

DiscoveryRequest indexing in Search Console

Rich result typeSoftware Application

Schema standardcurrent Schema.org vocabulary

Interactive Software / SaaS App generatorRun the full AI search audit

Schema.org typeBuilt in your browser

Software / SaaS App

Schema.org/SoftwareApplication Specification

Live in-browser check

Software Application target

Optimize SaaS apps, developer tools, and cloud platforms for Google Rich Snippets and Perplexity citations.

AI & SERP Star Ratings

Application Name*

Category*

Operating System*

Description*

Application URL*

Price*

Currency*

Rating (0-5)

Rating Count

Developer / Company Name

100%

Google Rich Results Health

Eligible

In-browser AST client validation • current Schema.org vocabulary

AEO / Perplexity Score: 100/100

No AggregateRating, so star rich results are not available. That is fine when you have no public reviews.

Add ratingValue and reviewCount only when those exact numbers are visible on the page. Do not invent them.

Valid Schema.org @contextSchema Type recognized: SoftwareApplicationApplication name specifiedOffer price & currency configured

1-Click Copy Ready

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "SoftwareApplication",
  "name": "SchemaCraft AI",
  "applicationCategory": "DeveloperApplication",
  "operatingSystem": "Web, macOS, Windows, Linux",
  "description": "JSON-LD schema builder and AEO optimizer with in-browser validation and live SERP preview.",
  "url": "https://schemacraft.ai",
  "offers": {
    "@type": "Offer",
    "price": "0",
    "priceCurrency": "USD"
  },
  "author": {
    "@type": "Organization",
    "name": "SchemaCraft Data Systems"
  }
}
</script>

Schema.org Validator

Instant SERP Preview Mini:

Sample preview data

SchemaCraft Data Systemshttps://schemacraft.ai › softwareapplication

SchemaCraft AI

JSON-LD schema builder and AEO optimizer with in-browser validation and live SERP preview.

Documented Google Search Central properties

Required and recommended properties for SoftwareApplication

Property	Format	Requirement	What Google may show
applicationCategory	Schema.org Category string	Mandatory	Categorizes SaaS in Google SERP
operatingSystem	Comma-separated string	Mandatory	Displays Platform Compatibility

What this markup is for

Zero Hydration Penalty

Pure static JSON-LD script tags executed during server-side rendering with no client bundle footprint.

AI Overviews Knowledge Graph

Gives Perplexity, Claude, and OpenAI Search structured SaaS attributes to classify.

Questions about this type

Questions about JSON-LD

Markup should describe what the page already shows. Valid JSON-LD does not guarantee a rich result.

Place the <script type="application/ld+json" dangerouslySetInnerHTML={{ __html: JSON.stringify(jsonLd) }} /> inside your app/layout.tsx or app/page.tsx Server Component.