JSON-LD Checker
Extension Actions
Check and validate JSON-LD structured data on webpages
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 β this JSON-LD Checker extension is a real time-saver.
π‘ 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.
β¨ Most Practical Features
𧲠Auto Detection: Automatically identifies JSON-LD presence on page load, with toolbar icon status
πͺ One-Click Side Panel: Tree view / Raw JSON / Validation summary
π§ͺ Built-in Validator: Catches missing fields, wrong data types, malformed URLs, and SEO recommendations
π€ AI Check: Explains issues in existing markup clearly (saves tons of troubleshooting time)
βοΈ AI Suggest: Generates production-ready JSON-LD drafts even when pages have none
π Language Support: Auto-detects language with manual switching (System / English / δΈζ)
π₯ Who Should Use This
π SEO / Technical SEO Specialists
π§βπ» Frontend Engineers & Content Developers (working with Schema/JSON-LD)
πͺ E-commerce / Local Business / Enterprise Sites (implementing structured data)
𧩠Anyone troubleshooting "Why isn't Google recognizing/showing rich results?"
π§ Common Use Cases (Happens All the Time)
π Client asks "I added structured data, why no results?": First verify what's actually on the page
𧱠Multiple JSON-LD blocks per page: Need to quickly switch between different blocks to locate issues
π Just modified fields/types/URLs: Want instant validation feedback
π Page has no JSON-LD: Need a reference template to draft quickly
Latest reviews
- du naming
- This plugin is a lifesaver! As someone who works with SEO and structured data, I used to waste time checking things on external websites. Now I can see all the results and errors with one click, right in my browser. It tells you exactly what's wrong and how to fix it. The interface is clean and simple, no bloat. Seriously recommend it to anyone working on websites or SEO β it's a tiny but mighty tool!
- daniel
- A very practical tool, available as a plugin, that allows you to quickly check the JSON-LD of any webpage. It has a user-friendly interface and is highly recommended.
- RΓ©gis PENNEL
- Does a nice job of efficiently extracting the json-ld from a website and show it an a readable manner. The improvement feature doesn't really work though... it shows everything in Chinese.