3 items
Inspect, validate & score JSON-LD, Microdata & RDFa in Chrome DevTools. Local-only. No data collection. Schema DevTools adds a dedicated Schema panel to Chrome DevTools so you can debug structured data the same way you debug CSS or network requests. WHAT IT DOES • Extracts JSON-LD, Microdata, and RDFa from the page you're inspecting • Validates markup against common Schema.org and Google rich-result rules • Shows a 0–100 quality score with error and warning counts • Provides Tree, Raw JSON, Knowledge Graph, Findings, and SERP Preview views • Adds a Schema sidebar pane in the Elements panel for the selected DOM node • Copies JSON, script tags, agent bundles, and Markdown reports for AI-assisted workflows • Opens Google Rich Results Test and Schema Markup Validator only when you request it PRIVACY FIRST • No host permissions • No background data access • No telemetry or analytics • Analysis runs locally while Chrome DevTools is open WHO IT'S FOR Developers, SEO engineers, and technical marketers who need fast, trustworthy structured-data feedback without leaving DevTools.
Aug 27, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.