Schema Generator
JSON-LD structured data.
Schema Generator at a glance
Schema Generator is a free online seo tool you can use right now to JSON-LD structured data โ no account, no install and no usage limit. It runs entirely inside your browser, so whatever you enter stays on your own device.
- Price
- Free โ no trial, no paid tier, no watermark
- Sign-up
- Not required
- Where it runs
- In your browser โ nothing is uploaded to a server
- Works on
- Chrome, Safari, Firefox and Edge โ desktop, tablet and phone
- Category
- SEO Tools
About Schema Generator
Generate schema.org structured data as JSON-LD, ready to paste into a script tag. Structured data is how you tell search engines and AI answer engines what a page actually is, rather than leaving them to infer it from the text.
JSON-LD is the format to use. Google explicitly recommends it over microdata and RDFa because it sits in a single script block rather than being woven through your markup, which means it can be generated, validated and changed without touching the page structure. Microdata still works but is meaningfully harder to maintain.
The types with the clearest return are FAQPage, HowTo, Product, Article, Organization and BreadcrumbList. FAQPage is particularly worth adding now, because question-shaped content is what AI answer engines quote most readily โ a well-marked FAQ block gives them a clean question and answer pair to lift.
One rule matters more than any other: structured data must describe what is genuinely visible on the page. Marking up FAQs that do not appear, or a rating nobody gave, is a policy violation that can trigger a manual action removing all your rich results. This is the most common way sites lose rich snippets. Review markup in particular is aggressively policed โ do not add aggregateRating unless you collect real ratings and display them.
How to use Schema Generator
- Choose the schema type that matches your page.
- Fill in the fields, using only information genuinely shown on the page.
- Copy the JSON-LD into a script tag in your <head>, then test it in Google's Rich Results Test.
Frequently asked questions
Which format should I use โ JSON-LD, microdata or RDFa?
JSON-LD. Google recommends it, and because it lives in a single script block it can be generated and updated without touching your markup. Microdata works but is much harder to maintain.
Does structured data improve rankings?
Not directly. It makes a page eligible for rich results โ star ratings, FAQ dropdowns, breadcrumb trails โ which raise click-through rate. It also helps AI answer engines understand and cite the page.
Can I mark up content that is not visible on the page?
No. Structured data must reflect what users actually see. Marking up hidden FAQs or invented ratings is a policy violation and can trigger a manual action removing all rich results from your site.
How do I check my markup is valid?
Use Google's Rich Results Test for eligibility and the Schema Markup Validator for general correctness. Search Console also reports structured-data errors it finds across your site once it is verified.