Free schema toolfree tool

Generate product JSON-LD from one product record.

Paste product fields or a product URL. The tool returns Schema.org/Product JSON-LD, missing-field warnings, unsupported-claim warnings, output preview, and a Central handoff for schema generated from verified product facts.

JSON-LD previewmissing fields flaggedunsupported claims flaggedCentral workflow bridge
Input1 session
Product URL requiredOptional URL parser. Extracted fields must be labeled candidate.
Product name inputRequired text.
Brand, SKU, GTIN requiredOptional fields with validation hints.
Image and product URL requiredOptional fields for schema output.
Offer fields inputPrice, currency, availability, condition.
Try exampleClear
Result · Free toolready with warnings
JSON-LD
ready with warnings
quick utilityreview warningsCentral handoff
Ready output

Product and Offer fields generated.

Finding

Description claim held for review.

Finding

Copy JSON-LD or connect to Central record.

Finding

JSON-LD preview: Pretty-printed Schema.org/Product and Offer output.

Finding

Missing fields: Warnings for recommended or needed fields not provided.

Finding

Claim warnings: Description claims not backed by input marked Needs source.

→ continue in Central
verified scope

Lightweight limit and Central bridge

JSON-LD turns product data into a machine-readable format. If the product record is thin or unsupported, schema can make the same weak claims easier to parse.

what it can do

Use the free tool for one focused product task.

  • JSON-LD preview: Pretty-printed Schema.org/Product and Offer output.
  • Missing fields: Warnings for recommended or needed fields not provided.
  • Claim warnings: Description claims not backed by input marked Needs source.
  • Validation notes: Syntax and required-field checks where implemented.
where Central adds proof

Connect the task to verified product records.

The tool can format provided fields. It cannot verify whether those fields are true across sources.

Inside Central, Schema.org/JSON-LD is generated from the canonical product record. Confidence is tracked on every fact, and x-central metadata can carry source and confidence context where implemented.

from utility to workflow

Useful once. Stronger when it is connected to the product record.

A free tool helps with one product. Central connects the same work to sources, confidence, review states, and channel-ready outputs.

free tool

One product task

Paste one URL, title, field, image, feed row, or schema snippet and get a practical output.

→
central verification

Sources + confidence

Central verifies the product record, tracks confidence, and keeps weak claims in review.

→
reusable output

Catalog workflow

Use the same rule across product pages, feeds, schema, widgets, marketplaces, or custom exports.

proof artifact

Proof artifact: one schema block to verified AI-readable data

Before
Free tool result
Central workflow result
Product fields pasted manually, with "professional grade" in description.
JSON-LD preview; claim marked Needs source.
Schema generated from verified record with unsupported claim removed.
URL parser extracts title and price.
Candidate fields, not verified facts.
Central verifies facts and tracks confidence before structured output.
One product.
Copy JSON-LD.
Batch schema, product widget data, feeds, and API-ready output.
FAQ

Questions before you start.

Does this ensure rich results?

+

No. The tool generates structured data. Search and AI surfaces decide how to use it.

Can I paste a product URL?

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Yes where implemented. Extracted fields should be treated as candidate until verified.

What is different inside Central?

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Central creates schema from source-backed product facts and review states.

Can schema include x-central metadata?

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Use x-central where implemented and explain it as source/confidence metadata.