Bulk UTM Builder
Tag hundreds of links at once and export them as a spreadsheet.
Product Schema Generator
Price, stock, rating and reviews as product rich snippet markup.
Identifiers
Offer
Without it, Google can treat the offer as stale and stop showing the price.
Aggregate rating — only if the reviews are real and on the page
Product JSON-LD
Your generated code appears here.
Quick Tool Overview
The Product Schema Generator writes Product JSON-LD with its nested Offer, Brand and AggregateRating. It enforces the rules that break most product markup: a bare numeric price with no symbol, a three-letter ISO currency code, a schema.org URL for availability, and GTIN, MPN and SKU kept in the separate fields Google treats differently.
- What it does
- Builds Product structured data with price, stock and rating
- You give it
- Product details, price, currency, availability and identifiers
- You get back
- A valid Product JSON-LD script with a nested Offer
- Best for
- Ecommerce product pages and single-product landing pages
About the Product Schema Generator
Enter what the product is, what it costs and whether it is in stock, and the generator writes the Product JSON-LD with its nested Offer, Brand and AggregateRating. The identifier fields — GTIN, MPN and SKU — are separated out, because Google treats them differently and merchants routinely put a barcode in the wrong one.
The price rules are where most product markup fails validation. priceCurrency must be a three-letter ISO code, price must be a plain number with no currency symbol and no thousands separator, and priceValidUntil is required for a fixed price if you want the offer to stay eligible past the date Google decides it has gone stale. Availability takes a schema.org URL rather than the word "in stock". All four are handled here, so what you copy is valid rather than merely plausible.
Key features of the Product Schema Generator
Price formatting enforced
Currency symbols and thousands separators are stripped, because Google rejects anything but a bare number.
Availability as a real URL
In stock, out of stock, pre-order and back-order become the schema.org URLs rather than free text.
GTIN, MPN and SKU separated
Each identifier goes in its own property, with a note on which one actually helps Google match your product.
Aggregate rating with a warning
Ratings are supported, alongside a plain statement that invented ones are a spam violation.
Condition and validity dates
itemCondition and priceValidUntil are included, so an offer does not quietly go stale.
How to use the Product Schema Generator
-
1
Describe the product
Name, description, image URLs, brand and the identifiers you have — GTIN, MPN or SKU.
-
2
Set the offer
Price as a plain number, the ISO currency code, the condition and the availability state.
-
3
Add ratings if they are real
Aggregate rating needs a genuine average and review count from reviews shown on the page.
-
4
Copy the script
Paste it into the product page and confirm with the Rich Results Test before you ship.
Frequently asked questions
Almost always formatting. price must be a bare number — 29.99, not $29.99 and not 1,299.00 — and priceCurrency must be a three-letter ISO code like USD or EUR. This tool strips symbols and separators for you and warns if the currency code is not three letters.
GTIN is the global barcode number (UPC, EAN, ISBN); MPN is the manufacturer part number; SKU is your own internal code. Use GTIN whenever the product has one, because it is the only identifier that lets Google match your listing to the same product elsewhere. SKU alone identifies nothing outside your shop.
Only if the reviews behind it are real, from your own customers, and visible on that page. Self-serving invented ratings are a structured data spam violation, and Google has issued manual actions for it. Leave the rating fields empty rather than making a number up.
It tells Google how long the price is good for. Without it, an offer can be treated as expired once the data looks stale, and the rich result quietly stops showing. For an ongoing price, set it a few months ahead and keep it moving.
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