Json Ld Checker

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