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How to Validate JSON-LD - Step by Step Guide

Step 1

Input Your JSON-LD Data

Start by adding your JSON-LD data. Whether it's Schema.org markup from your website or structured data from an API, you have a few easy ways to get started:

•
Paste directly: Copy your JSON-LD from your website or text editor and paste it in
•
Upload a file: Have a .json file? Click "Upload" to select it from your computer
•
Try the sample: Not sure how it works? Click "Sample" to see an example

Example: Valid JSON-LD with Schema.org

Here's a properly structured JSON-LD using Schema.org vocabulary for an Article:

{"@context": "https://schema.org","@type": "Article","headline": "Understanding Semantic Web Technologies","author": {"@type": "Person","name": "Dr. Yuki Tanaka","url": "https://example.org/authors/yuki"},"datePublished": "2024-01-15","image": "https://example.org/images/semantic-web.jpg"}
Step 2

Automatic Validation & Error Detection

As soon as you add your JSON-LD, the validator (powered by jsonld.js) checks everything automatically. Here's what it looks for:

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JSON syntax: Makes sure your JSON is properly formatted (no missing commas or brackets)
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Context resolution: Checks that your @context URLs work and point to the right vocabularies
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Required fields: Makes sure you have @type and other important properties
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Clear error messages: If something's wrong, you'll get helpful tips on how to fix it

Example: Validation Success Indicator

The validator provides instant feedback on your JSON-LD quality:

✓Valid JSON-LD Structure

Successfully validated! Your JSON-LD is properly formatted with valid @context resolution, correct @type declarations, and all required properties. Ready for use in web pages, search engine optimization, or conversion to RDF formats.

Step 3

Review Validation Results

Once validated, you'll see clear results showing whether your JSON-LD is good to go:

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Green checkmark: Means your JSON-LD is valid and ready to use on your website
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Error messages: If there are issues, you'll see exactly what needs fixing
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Schema.org check: Confirms your markup follows Schema.org guidelines for better SEO

Example: Next Steps with Validated JSON-LD

Once validated, your JSON-LD is ready for multiple uses:

→
SEO Enhancement: Add to your website's <script type="application/ld+json"> tags for improved search engine visibility and rich results
→
Knowledge Graph Integration: Use validated JSON-LD in knowledge graph construction with Apache Jena or other semantic web platforms
→
Format Conversion: Convert to RDF Turtle format for triple stores and SPARQL querying
→
Linked Data Publishing: Publish your validated structured data as part of Linked Open Data initiatives

Frequently Asked Questions

What is JSON-LD and why validate it?

JSON-LD is a way to add structured data to your website using JSON format. Search engines like Google use it to better understand your content and show rich results. Validating makes sure your data is formatted correctly so search engines can read it properly. It's especially useful for Schema.org markup on websites.

Does this validator check Schema.org compliance?

Yes, it checks that your Schema.org vocabulary is used correctly with proper @context, @type, and properties. For Google-specific testing, you can also use our JSON formatter to clean up your output before testing with Google's Rich Results Test.

What are common JSON-LD errors?

Common mistakes include missing @context, wrong @type values, incorrect property names, missing required fields, and JSON syntax errors like missing commas or brackets. The validator will point out exactly what's wrong and where.

Can I use this for SEO?

Absolutely! This validator is perfect for checking JSON-LD before adding it to your website. Valid JSON-LD helps search engines understand your content better, which can improve your search results and enable rich snippets in Google.

Can I convert JSON-LD to other RDF formats?

Yes! After validating your JSON-LD, you can use our JSON to RDF Turtle converter to transform it into Turtle format for use in triple stores and semantic web applications.

Is the JSON-LD validator free?

Yes, it's completely free! No sign-up needed, no limits. Your data stays in your browser for privacy.

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