JSON-LD Generator + Schema Checker
Paste a page URL and Otto, the built-in AI bot, detects the page type and generates JSON-LD grounded in what the page actually says - or switch to Check mode and lint your existing markup for an A-F grade.
Most JSON-LD tools hand you a blank form and let you type whatever you like - which is how the web filled up with invented ratings and made-up review counts. This free tool works from your page instead: it reads the URL you give it, detects what kind of page it is, and generates structured data from the values that are actually there. Or point Check mode at a page you have already marked up and get an honest grade. No account needed.
Generate
Paste a page URL and get grounded JSON-LD for the detected page type - Organization, WebSite, Product, Article, FAQPage, BreadcrumbList, LocalBusiness or SoftwareApplication.
Check
Already have markup? Check mode lints it against a deterministic rules table - required properties, type mismatches, common mistakes - and grades it A-F.
Iterate
Otto, the built-in Chat Thing bot, sits beside the output: ask it to add a property, switch a type, or explain exactly why a check failed.
A schema generator from URL, not from a blank form
Form-based generators produce markup that describes the page you wish you had. This one reads the page you actually have: paste a URL and it detects the page type, then builds JSON-LD from the real title, description, prices, authors and breadcrumbs it finds there. It never invents ratings, reviews or prices - if a value is not on the page, it is not in the markup. That matters, because structured data that contradicts the visible page is exactly what search engines are trained to distrust.
A structured data generator and a schema markup checker in one
Generating markup is half the job; knowing whether your existing markup is any good is the other half. Check mode fetches a page, finds the JSON-LD already on it and lints it against a deterministic rules table - missing required properties, wrong types, values that do not match the page - then grades the result A-F. The rules are fixed and inspectable, so the same page always gets the same grade, and Otto can explain any line of the report. One thing this tool will never do is promise you rich results: nobody can, and Google restricted FAQ and HowTo rich results in 2023. Good schema helps machines understand your pages; that is the honest claim.
A product schema generator you can paste into any platform
Generated markup is only useful once it is live. The output is a single script tag ready to paste, with platform guidance for the places people actually publish: where it goes in a Shopify theme, how to add it to WordPress with or without a plugin, and where Webflow's custom code slots live. Product pages get Product schema from real prices and availability on the page; articles, local businesses and software pages get their own types the same grounded way. Iterate with Otto until the markup is right, then ship it.
FAQ
Your questions, answered
What is a JSON-LD generator?
It is a tool that writes structured data - machine-readable descriptions of your pages in the schema.org vocabulary - as JSON-LD, the format Google recommends. This one generates it from a page URL, grounded in what the page actually contains, rather than from a blank form you fill in by hand.
Is it free?
Yes. Generate, check, iterate and export at no cost. It is built by the team behind Chat Thing as a free tool - no account and no credit card needed.
What schema types can it generate?
Organization, WebSite, Product, Article, FAQPage, BreadcrumbList, LocalBusiness and SoftwareApplication. It detects the page type from the URL you paste and proposes the right ones, and you can ask Otto to add or switch types.
Will this get me rich results in Google?
No tool can promise that, and this one deliberately does not. Google decides when to show rich results, and it restricted FAQ and HowTo rich results in 2023. What valid, grounded schema does is help search engines and AI systems understand your pages correctly - that is the claim this tool makes, and the only honest one.
How does Check mode grade my existing markup?
It fetches your page, extracts the JSON-LD on it and runs a deterministic rules table over it: required and recommended properties, type correctness, and common mistakes like values that contradict the visible page. The result is an A-F grade with a line-by-line report, and the same input always produces the same grade.
Does it ever invent ratings, reviews or prices?
No. The generator is grounded by design: values come from the page you point it at, and anything it cannot find is left out rather than made up. Fabricated review markup is against search engine guidelines and this tool will not write it.
How do I add the markup to Shopify, WordPress or Webflow?
The output is a single JSON-LD script tag, and the tool includes paste-in guidance for each platform: theme code or an app block in Shopify, a plugin or theme header in WordPress, and the per-page custom code settings in Webflow.
Do I need a Chat Thing account?
No. The tool runs in your browser with no signup. If you also want an AI bot that answers questions from your site's content, that is what Chat Thing does - but it is never required to use the tool.
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