AVAILABLE FOR WEB, FLUTTER & QA PROJECTS
How to use this tool
1. Select Review Mode & Item Type
Choose between Single Critic Review or Aggregate Rating, then choose what is being reviewed (Product, SoftwareApplication, Service, LocalBusiness, Book, Course).
2. Enter Item Reviewed Details
Specify the name of the item being reviewed, its official URL, and an image URL representing the product or service.
3. Input Star Rating & Review Text
Enter your rating score (e.g. 4.8 out of 5), the author name (Person), review headline, publication date, and review summary.
4. Copy & Validate JSON-LD
Preview the Google SERP snippet simulation with gold stars, validate the code in Google's Rich Results Tool, and copy the markup.
Formula or logic used
Google Review Snippet & Self-Serving Policy Guidelines
Google enforces strict guidelines regarding review snippets, including prohibiting 'self-serving' reviews for LocalBusiness and Organization schemas on their own websites.
ItemReviewed Types: Must reference a specific item such as Product, Book, Movie, Course, SoftwareApplication, or RecipeRating Scale: reviewRating must define ratingValue (e.g. 4.5), bestRating (usually 5), and worstRating (usually 1)Author Attribution: Google requires genuine human author attribution (Person) for individual reviews, not anonymous bot textSelf-Serving Review Policy: Direct 1st-party reviews on your own LocalBusiness or Organization cannot trigger star snippets on your own domain
Examples
Example 1: Software Tool In-Depth Review
Generates eye-catching star ratings next to your review article in search results.
Example 2: Product Aggregate Customer Rating
Displays average customer score and total review count in organic search snippets.
Common use cases
Affiliate & Tech Review Sites
Add verified critic reviews and star ratings to software, hardware, and gadget review pages.
Client Testimonial Markups
Structure client feedback for third-party tools, courses, and educational materials.
Comparison & Best-of Roundups
Provide granular structured reviews for each product featured in an editorial 'Top 10' comparison list.
Course & Book Review Portals
Display student and reader ratings directly within search engine query results.
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Frequently asked questions
Can I use review schema on my homepage to show stars for my own business?
No. In 2019, Google introduced the self-serving review policy, which invalidates rich star snippets for LocalBusiness and Organization markup placed on that business's own website. Reviews must be for specific 3rd-party items or products.
What is the difference between Review and AggregateRating?
A Review schema represents a single review written by one person or organization. AggregateRating represents the mathematical average score derived from multiple ratings or reviews.
Can I use a 10-point or 100-point rating scale?
Yes. Set `bestRating: 10` or `bestRating: 100` alongside your `ratingValue`. Google will automatically normalize the score to display standard 5-star graphical representations in SERPs.
Are pros and cons supported in Review schema?
Yes! Google recently added support for positiveNotes (pros) and negativeNotes (cons) arrays in Product Review schema to show structured pros/cons in search snippets.
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