Schema markup generator
Build paste-ready JSON-LD for common Schema.org types entirely in your browser.
Generated JSON-LD
The output is serialized from a JavaScript object and round-tripped through JSON.parse().
What does a schema markup generator do?
This tool creates JSON-LD structured data for Article, FAQPage, Product, HowTo, LocalBusiness, and BreadcrumbList markup. It builds a real object first, then uses JSON.stringify with two-space indentation so special characters in your input remain valid JSON.
After generation, the JSON payload is parsed again as a sanity check. The final script wrapper is ready to paste into a page's HTML.
Validate your structured data
After generating markup, validate the result with Google's Rich Results Test. Validation can reveal missing properties or whether a particular Schema.org type is eligible for a supported rich result.
Frequently asked questions
Does this tool send my schema data to a server?
No. The generator builds and serializes the schema entirely in your browser and makes no network requests.
Why does the generator use JSON.stringify?
The schema is built as a real JavaScript object and serialized with JSON.stringify so quotes, backslashes, ampersands, and newlines in user input are escaped correctly.
Where can I validate generated structured data?
Paste the generated JSON-LD into Google's Rich Results Test to check supported rich-result markup.