JSON-LD Checker

Check and validate JSON-LD structured data on webpages

As of June 2026, JSON-LD Checker has 572 users and a 4.67/5 rating from 3 reviews in the Developer Tools category.

郭小铭 Developer Tools

Chrome Web Store ↗.crx

Users+54.2%

572

Rating0%

4.67

3 reviews

Reviews0%

Version

2.3.2

Manifest V3

90-day change · In the last 90 days this extension 3 version updates.

History

11 snapshots

Tracking since Apr 1, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 1, 2026	371	4.67	3	2.2.0
Apr 9, 2026	382	4.67	3	2.2.0
Apr 20, 2026	419	4.67	3	2.2.0
Apr 25, 2026	481	4.67	3	2.2.0
May 2, 2026	514	4.67	3	2.3.0
May 9, 2026	517	4.67	3	2.3.1
May 13, 2026	493	4.67	3	2.3.2
May 19, 2026	518	4.67	3	2.3.2
May 26, 2026	1.0K	4.67	3	2.3.2
Jun 1, 2026	717	4.67	3	2.3.2
Jun 8, 2026	539	4.67	3	2.3.2
Now	572	4.67	3	2.3.2

Permissions & access

Permissions: activeTabsidePanelscriptingstoragenotifications
Host access: <all_urls>

Screenshots

About

Must-Have Browser Extension for SEO & Structured Data: JSON-LD Checker

If you frequently work with JSON-LD on web pages, troubleshoot Schema markup, or need instant validation after implementing structured data — this JSON-LD Checker extension is a real time-saver.

💡 One-Sentence Summary
Directly "extract + validate + visualize" JSON-LD structured data from any webpage in your browser's side panel; plus AI-powered issue explanation and even zero-to-draft JSON-LD generation.

✨ Most Practical Features
🧲 Auto Detection: Automatically identifies JSON-LD presence on page load, with toolbar icon status
🪟 One-Click Side Panel: Tree view / Raw JSON / Validation summary
🧪 Built-in Validator: Catches missing fields, wrong data types, malformed URLs, and SEO recommendations
🤖 AI Check: Explains issues in existing markup clearly (saves tons of troubleshooting time)
✍️ AI Suggest: Generates production-ready JSON-LD drafts even when pages have none
🌍 Language Support: Auto-detects language with manual switching (System / English / 中文)

👥 Who Should Use This
📈 SEO / Technical SEO Specialists
🧑‍💻 Frontend Engineers & Content Developers (working with Schema/JSON-LD)
🏪 E-commerce / Local Business / Enterprise Sites (implementing structured data)
🧩 Anyone troubleshooting "Why isn't Google recognizing/showing rich results?"

🧠 Common Use Cases (Happens All the Time)
🔎 Client asks "I added structured data, why no results?": First verify what's actually on the page
🧱 Multiple JSON-LD blocks per page: Need to quickly switch between different blocks to locate issues
🔁 Just modified fields/types/URLs: Want instant validation feedback
📝 Page has no JSON-LD: Need a reference template to draft quickly