Schema / JSON-LD Validator

About this JSON-LD validator

Paste your JSON-LD structured data and instantly validate its structure. The tool checks that the JSON syntax is valid, that the required @context and @type properties are present, and that the most important properties for each Schema.org type are included. Common types like Article, Product, BreadcrumbList, LocalBusiness, FAQPage, Event, Recipe, and more are supported.

Structured data helps search engines understand your pages and can unlock rich results — star ratings, FAQ accordions, recipe cards, event listings, and breadcrumb trails in search results. Google, Bing, and other engines all read JSON-LD, and errors in your markup silently prevent those features from appearing.

This is a structural validator, not a fetch-and-test tool. It does not connect to Google's Rich Results Test or any external API — you paste the markup directly, and all validation runs locally in your browser. This means your markup stays private and the tool works offline.

The validator checks required properties per type (e.g., headline, author, and datePublished for Article) and shows warnings for missing recommended properties like description, image, and url. It also catches common mistakes like using http instead of https in the @context URL.