Review Schema Generator
Create valid Review and AggregateRating JSON-LD with star ratings for products and services, ready to paste into any page.
Turn reviews into rich results
Star ratings in search results are one of the most eye-catching rich results, and they're powered by review structured data. This generator builds valid JSON-LD for a single review — the item, author, rating, date, and review text — and optionally an aggregate rating that summarizes your average score and total review count. Together they give search engines everything they need to consider showing stars beside your listing.
Use it responsibly: Google's guidelines require that marked-up ratings reflect genuine reviews visible on the same page, and prohibit sites from posting review markup about themselves. Add the JSON-LD to the reviewed page, keep it truthful, and validate with the Rich Results Test.
Private and instant
Generated entirely in your browser — nothing is uploaded.
Frequently Asked Questions
What is review schema?
Review schema is JSON-LD structured data describing a rating and review of a product, service, or business. It can make star ratings eligible to appear in search results.
Can I mark up an average rating?
Yes. Add aggregate rating fields — the average value and the number of reviews — and this generator includes an AggregateRating alongside the individual review.
Are there rules about review markup?
Google requires that ratings come from genuine reviews shown on the same page, and prohibits self-serving reviews about your own business on your own site. Only mark up authentic, visible reviews.
Is this tool free and private?
Yes. The schema is generated in your browser — nothing is uploaded or stored.
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