Schema Markup Viewer icon

Schema Markup Viewer

by Serhii Pohorilyi · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

View Schema JSON-LD markup on any page.

Users
415
+29 in 30 days
Rating
4.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#47K
#39K among extensions
Version
1.4
updated 4 May 2026

Users

monthly, 9 months
0212423Jan 2026Jun 2026Oct 2026
Latest, 15 Oct 2026: 415 usersMove the mouse over the chart for any month

Ratings count

monthly, 9 months
001Jan 2026Jun 2026Oct 2026
Latest, 15 Oct 2026: 1 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Schema Markup Viewer

Schema Markup Viewer is a simple and powerful tool for developers and SEO professionals to instantly view Schema JSON-LD structured data on any webpage. ✨ KEY FEATURES: - Instant Detection — Automatically finds and displays all JSON-LD schema markup on the current page - Quick Search — Search through schema content with highlighted results and easy navigation - Two View Modes — Switch between structured tree view and raw JSON with syntax highlighting - One-Click Validation — Validates URL directly or copies HTML to test with Google Rich Results Test and Schema.org - Schema Documentation — Provides direct links to standard Schema.org and Google documentation for the detected schemas - Copy to Clipboard — Easily copy any schema block as formatted JSON - Error Detection — Identifies broken JSON-LD blocks and performs validations against official Google Guidelines (covers the next schemas: Article, Product, FAQPage, BreadcrumbList, Recipe, Event, LocalBusiness, VideoObject, JobPosting, Organization, SoftwareApplication), spotting empty values, invalid URLs, missing required fields, and logic inconsistencies 🎯 PERFECT FOR: - SEO specialists checking structured data implementation - Web developers debugging schema markup - Content managers verifying rich snippets - Anyone analyzing website structured data 🔒 PRIVACY FOCUSED: - No data collection — everything is processed locally in your browser - No external servers — your data never leaves your device - Minimal permissions — only accesses pages when you click the icon 📖 HOW TO USE: 1. Navigate to any webpage 2. Click the Schema Markup Viewer icon 3. View all detected schemas in an organized accordion layout 4. Search through schema content 5. Toggle between tree view and raw JSON 6. Use the Validate Schema dropdown to test your markup Feel free to reach out with any ideas or feedback to make this tool even better.

Growth

WindowUsersChangeRatingsRating
7 days−19−4.4%00.00
30 days+29+7.5%00.00
6 months+294+243.0%00.00

Version history

5 versions recorded
1.44 May 2026
1.35 Mar 2026
1.211 Feb 2026
1.127 Jan 2026
1.021 Jan 2026

Details

Category
Developer Tools
First seen
21 Jan 2026
Size
33 KB
Languages
en
Pricing
Free
Extension ID
ahioobjibljbaaflkeppkficgedafboe

Permissions and risk

Minimal riskimpact 0, likelihood 2
Permissions
activeTabscripting

Alternatives to Schema Markup Viewer

Extensions that rank for the same store searches or share the Developer Tools category, ordered by users