code

Schema Markup Generator | Generate JSON-LD structured data

Generate JSON-LD structured data for SEO — Article, FAQ, LocalBusiness, Product and more — with the correct schema.org properties applied and copyable output. Help search engines understand your pages and qualify for rich results, with the markup validated before you paste it.

Last updated: June 2026 · Free · No sign-up required

JSON-LD Output

Select a schema type and fill in the fields.

Frequently Asked Questions

Where should I paste the generated schema markup?

Copy the generated `<script>` block and paste it directly within the `<head>` or the `<body>` of your HTML document. Standard practice is to place it in the `<head>` block.

What is JSON-LD?

JSON-LD stands for JavaScript Object Notation for Linked Data. It is a structured data format recommended by Google to describe your page content to search engine bots.

Can I validate the schema generated here?

Yes, you can copy the code output and paste it into the official Google Rich Results Test tool or Schema Markup Validator to verify its correctness.

Quick reference

Schema type	Rich result it can earn
FAQPage	Expandable Q&A in search
Product + Review	Price, rating stars
Article / NewsArticle	Top stories, headline + image
LocalBusiness	Hours, address, map pack signals
Breadcrumb	Breadcrumb trail in results

info Schema Markup Generator

Free developer tools calculator — enter your numbers and get an instant, accurate result.

info Private by design

Everything runs locally in your browser. No uploads, no accounts, no tracking.

info Works everywhere

Fully responsive and mobile-friendly — calculate on any device, any time.

info Educational

Includes the formula and step-by-step explanation so you understand the math, not just the answer.

Interpretation guide

Best practice	Why
Use JSON-LD	Google's recommended format
Place in <head> or body	Inside a script type="application/ld+json"
Match visible content	Markup must reflect on-page content
Validate	Use Google's Rich Results Test

lightbulb Worked example

Let's say you are using the Schema Markup Generator. A free tool to generate JSON-LD structured data markup for SEO. Supports Article, FAQ, Local Business, Product, and more. Paste the output directly into your page's . Enter the values that match your situation into the input fields and press calculate — using realistic numbers makes the result directly useful for you.

Result: The calculator instantly applies the formula JSON-LD block: { "@context": "https://schema.org", "@type": "FAQPage", ... } inside a script tag of type application/ld+json and returns the result with appropriate precision.

What this means: Read the result in the context of what you are measuring. The step-by-step breakdown lets you confirm the math and understand which input most affects the outcome.

Formula & methodology

Formula: JSON-LD block: { "@context": "https://schema.org", "@type": "FAQPage", ... } inside a script tag of type application/ld+json

How schema markup works

Schema.org structured data tells search engines exactly what your content is — an FAQ, a product, a recipe — so they can show rich results. The recommended format is JSON-LD placed in a script tag.

Example: a minimal FAQ

A FAQPage object lists each question as a Question with an acceptedAnswer. Google can then show those Q&As directly in search.

After generating the JSON-LD, paste it into your page's HTML and confirm it with Google's Rich Results Test. The markup must accurately describe content that is visible to users — marking up content that is not on the page violates Google's guidelines and can trigger a manual action.

Authoritative source: MDN Web Docs

Frequently asked questions

What is schema markup?

Schema markup is structured data — a standardized vocabulary from Schema.org — added to a web page to help search engines understand its content. It labels things like FAQs, products, reviews, events, and recipes. While it does not directly boost rankings, it can earn rich results (stars, FAQs, images) that improve visibility and click-through.

What is JSON-LD?

JSON-LD (JavaScript Object Notation for Linked Data) is Google's recommended format for schema markup. It is a block of JSON wrapped in a script tag with type 'application/ld+json' that you place in the page's HTML. Unlike older microdata, it sits separately from your visible markup, making it easy to add and maintain.

Does schema markup improve SEO?

Schema is not a direct ranking factor, but it can significantly help SEO indirectly. By making pages eligible for rich results — FAQ dropdowns, review stars, product details — it increases how much space and attention your listing gets in search, which can raise click-through rates and qualified traffic.

Which schema types should I use?

Use the types that match your content: FAQPage for question-and-answer sections, Product with Review for e-commerce, Article or NewsArticle for blog and news content, LocalBusiness for storefronts, Recipe for cooking sites, and BreadcrumbList for navigation. Only mark up content that is actually present and visible on the page.

How do I test my schema markup?

Paste your page URL or the generated JSON-LD into Google's Rich Results Test or the Schema.org validator. These tools flag syntax errors, missing required properties, and which rich results the page qualifies for. Always validate before publishing, and recheck after content changes to keep the markup accurate.

What does the Schema Markup Generator do?

A free tool to generate JSON-LD structured data markup for SEO. Supports Article, FAQ, Local Business, Product, and more. Paste the output directly into your page's .. The calculator takes your inputs, applies the standard calculation, and returns a clear result so you can make an informed decision without doing the math by hand.

What formula does the Schema Markup Generator use?

Is the Schema Markup Generator free and private?

Yes — the Schema Markup Generator. There is no sign-up, no paywall, no trial, and no limit on how many calculations you can run. CalcaTools covers its costs with non-intrusive display advertising, so the calculator itself never asks for payment or restricts any feature.

How accurate is the Schema Markup Generator?

The Schema Markup Generator applies the standard formula: JSON-LD block: { "@context": "https://schema.org", "@type": "FAQPage", ... } inside a script tag of type application/ld+json. It is tested against published worked examples before launch and uses native double-precision arithmetic, so results are accurate to typical precision for the values you enter — with no intermediate rounding that could distort the answer.

Explore the full developer toolkit

Every CalcaTools developer tool — encoders, formatters, generators, regex, JSON, and API utilities — built for the browser.