Review Schema Generator

Use Single Review when your page carries one specific write-up by one author — a review article, a comparison verdict, a single testimonial. Use Aggregate Rating when you're summarising many ratings into one number, like a "4.6 out of 5 from 128 ratings" badge. They're different schema.org shapes: a Review wraps the item it's about, while an AggregateRating attaches directly to the item itself.

Yes. Google's structured data guidelines require review and rating markup to reflect genuine reviews or ratings that actually appear, visibly, on the page carrying the schema. Marking up reviews that don't exist on the page, or ratings you made up, is a misuse of the review snippet feature and puts the site at risk of a manual action.

Yes — that's exactly what this tool is for. Google explicitly allows third-party Review markup (a review or comparison site reviewing a product it doesn't sell), which is why itemReviewed is a separate object here rather than requiring a full Product listing with an Offer. Just keep the review genuine and visible on the page.

Only the mode you're currently on gets generated — each tab keeps its own fields, and switching tabs doesn't erase what you typed in the other one, but the output box always shows just the active mode's JSON-LD. If a page genuinely needs both a written review and a separate aggregate badge, generate each one here and paste them as two separate script blocks.

It sets the @type of the thing being reviewed — Product, Book, LocalBusiness, Movie, Recipe, SoftwareApplication, and so on. Pick whatever schema.org type actually matches the item; leave it blank and the tool falls back to the generic "Thing" type, which is valid but less specific.