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15 schema types, three formats (JSON-LD / Microdata / RDFa), built-in Rich Results validator.
Blog post, news article, or general article. Powers article rich results.
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "Article"
}
</script>A schema markup generator is a tool that builds the structured-data code search engines read to power rich results, knowledge panels, and the sitelinks search box. You pick a type (Article, Product, FAQ, etc.), fill a form, and copy the generated JSON-LD into your page. Google ranks pages with valid schema higher in many categories.
This generator covers 15 of the most common schema.org types, supports all three output formats Google accepts (JSON-LD, Microdata, RDFa), and validates your data against Google Rich Results rules before you copy. Everything runs in your browser. Your data never touches our servers.
Unlimited schemas, no signup, no daily cap. TechnicalSEO's free generator caps at one type at a time and pushes you to a sales call for "advanced" types. We don't.
Most generators emit JSON-LD only. We render the same data as JSON-LD, Microdata, and RDFa so you can pick the format your CMS supports best.
Catches Rich Results blockers before you paste into your site: missing headline, FAQ with 1 entry, breadcrumb with no items, address without country code.
Your draft product names, prices, FAQ answers, job postings stay on your laptop. Compare with Merkle's generator that sends every keystroke to their analytics.
| Feature | Molixa | TechnicalSEO | Merkle | Schema App |
|---|---|---|---|---|
| 15 schema types covered | Yes | 10 | 9 | Plus, paid |
| JSON-LD output | Yes | Yes | Yes | Yes |
| Microdata output | Yes | No | No | No |
| RDFa output | Yes | No | No | No |
| Built-in Rich Results validator | Yes | Partial | No | Paid tier |
| Required + recommended field hints | Yes | Required only | Required only | Yes |
| Free with no signup | Always | Yes | Yes | Trial only |
| Browser-only (no data sent) | Yes | No | No | No |
Yes. Unlimited schemas, no signup, no daily cap, no watermark in the output. The form runs entirely in your browser. TechnicalSEO and Merkle put their generators behind sales gates or limit certain types; we don't.
15 of the highest-traffic types: Article, Product, FAQPage, HowTo, Recipe, Event, LocalBusiness, Organization, Person, WebSite, BreadcrumbList, Review, VideoObject, JobPosting, and Course. Together they cover every Google Rich Results category an average site will need.
Three: JSON-LD (Google's preferred format, drop into a script tag), Microdata (inline HTML attributes for older sites), and RDFa (the W3C web data format). Click any tab to see the same data rendered in that format.
Yes for the rules we can enforce client-side: required fields per type, recommended fields (yellow warnings), headline length limits, minimum FAQ entries (2+), minimum HowTo steps (2+), minimum breadcrumb items (2+). For full validation, paste the output into Google's Rich Results Test.
Copy the JSON-LD output and paste it inside a <script type="application/ld+json"> tag in your page's <head> or <body>. Most CMSs and frameworks have a way to inject custom head scripts. Microdata and RDFa go inline with the visible HTML.
Three common reasons. First, FAQ rich results were limited to authoritative sites in 2023, so smaller sites may not see them. Second, you need at least 2 question entries (we warn if you don't). Third, the FAQ must be visible to users on the page, not just in the schema.
Yes. Article, Product, Recipe, JobPosting, and others have nested object fields (author Person, hiringOrganization Organization, brand Brand). The form expands inline so you fill the parent and child in the same place.
JSON-LD lives in a script tag separate from your HTML. Microdata uses itemscope/itemprop attributes on existing tags. RDFa uses property/typeof attributes with a vocab. Google supports all three but recommends JSON-LD because it does not couple your HTML structure to your structured data.
No. The form, the build, the validation, and the serialization all happen in your browser. We never see what you type. Your draft schemas, your product data, your FAQ answers stay on your device. Close the tab and the data is gone.
Not yet, but on the roadmap. For this version, you fill the form from scratch. The output panel does have copy and download buttons so you can save your work as a .json file and rebuild later.
15 types, three formats, built-in validator, free unlimited, no signup. Pick a type and start filling.
Open the schema generatorThe Schema Markup Generator page is built, reviewed, and maintained by the Molixa team. We use the tool we ship and update the docs when the behavior changes.