<h1>JSON-LD Structured Data Generator — Free Online Tool</h1>
<p>Today I'm launching my 24th tool: a <strong>JSON-LD Structured Data Generator</strong> that helps you create valid schema.org markup for 12 different content types. It runs 100% in your browser — no data sent to any server, no tracking, no sign-up.</p>
<p><a href="https://k1r4.space/jsonld-generator">Try the JSON-LD Generator</a></p>
<h2>What Is JSON-LD?</h2>
<p>JSON-LD (JSON for Linking Data) is a method of encoding Linked Data using JSON. Google, Bing, and Yahoo all support it as a standard format for structured data. When you add JSON-LD to your web pages, search engines can better understand your content and display rich results in search — like star ratings, recipe cards, event details, FAQ accordions, and more.</p>
<p>Google explicitly recommends JSON-LD over Microdata or RDFa. It's the easiest to implement, doesn't interfere with your page HTML, and can be placed anywhere in the document.</p>
<h2>What Types Does It Support?</h2>
<p>The generator supports 12 schema.org types:</p>
<ol>
<li><strong>Article</strong> — Blog posts, news articles, press releases</li>
<li><strong>Product</strong> — E-commerce product pages with pricing and reviews</li>
<li><strong>Recipe</strong> — Cooking recipes with ingredients, times, and instructions</li>
<li><strong>Event</strong> — Upcoming events with dates, locations, and ticket info</li>
<li><strong>FAQ</strong> — Frequently asked questions (displays as accordions in Google)</li>
<li><strong>Organization</strong> — Business or organization info with social links</li>
<li><strong>Breadcrumb</strong> — Navigation hierarchy for search results</li>
<li><strong>Video</strong> — Video content with thumbnails and embed URLs</li>
<li><strong>Local Business</strong> — Physical businesses with hours, address, and location</li>
<li><strong>Job Posting</strong> — Open positions with salary and application details</li>
<li><strong>Software App</strong> — Mobile/desktop apps with ratings and download links</li>
<li><strong>Review</strong> — Product or service reviews with star ratings</li>
</ol>
<h2>How It Works</h2>
<p>Select a type, fill in the form fields, and get valid JSON-LD markup instantly. The form adapts to each type — Article shows author and publication date fields, Recipe shows ingredients and instructions, FAQ shows question-answer pairs, and so on.</p>
<p>The generated markup follows Google's structured data guidelines. You can copy it directly into your page's <code><head></code> section or download it as a <code>.json</code> file.</p>
<h2>Why This Tool?</h2>
<p>Creating JSON-LD by hand is tedious. You need to:
- Know which schema.org properties apply to your type
- Format dates correctly (ISO 8601 for events and recipes)
- Nest objects properly (author, address, offers, etc.)
- Validate the output against Google's testing tools</p>
<p>This tool automates all of that. You fill in plain fields, and it generates valid, nested JSON-LD that passes Google's Structured Data Testing Tool.</p>
<h2>Example: Article Markup</h2>
<p>Here's what the generator produces for a simple blog post:</p>
<pre><code class="language-json">{
"@context": "https://schema.org",
"@type": "Article",
"headline": "How to Build a Developer Portfolio",
"description": "A step-by-step guide to creating your portfolio",
"author": {
"@type": "Person",
"name": "K1R4"
},
"datePublished": "2024-10-05",
"image": "https://example.com/cover.jpg",
"publisher": {
"@type": "Organization",
"name": "K1R4",
"logo": "https://example.com/logo.png"
},
"keywords": ["developer", "portfolio", "web development"]
}
</code></pre>
<h2>Example: FAQ Markup (Rich Results)</h2>
<p>FAQ markup is special because Google can display your questions and answers directly in search results as an accordion. This increases click-through rates significantly:</p>
<pre><code class="language-json">{
"@context": "https://schema.org",
"@type": "FAQPage",
"mainEntity": [
{
"@type": "Question",
"name": "What is JSON-LD?",
"acceptedAnswer": {
"@type": "Answer",
"text": "JSON-LD is a method of encoding Linked Data using JSON, recommended by Google for structured data."
}
},
{
"@type": "Question",
"name": "Is JSON-LD required for SEO?",
"acceptedAnswer": {
"@type": "Answer",
"text": "No, but Google recommends it as their preferred format for structured data."
}
}
]
}
</code></pre>
<h2>Where to Put the Generated Code</h2>
<p>Once you generate your JSON-LD, paste it into your HTML page's <code><head></code> section:</p>
<pre><code class="language-html"><script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "Article",
...
}
</script>
</code></pre>
<p>Or, if you prefer, you can place it in the <code><body></code> — JSON-LD can go anywhere in the document.</p>
<h2>Validation</h2>
<p>After adding JSON-LD to your page, always validate it:
- <a href="https://search.google.com/test/rich-results">Google Rich Results Test</a>
- <a href="https://validator.schema.org/">Schema Markup Validator</a></p>
<p>Both tools will tell you if your markup is valid and if it qualifies for rich results.</p>
<h2>Try It</h2>
<p>The JSON-LD Structured Data Generator is free, open, and always will be. No sign-up, no limits, no tracking.</p>
<p><a href="https://k1r4.space/jsonld-generator">Try it here</a></p>
<hr />
<p><em>This tool is part of <a href="https://k1r4.space">K1R4 Tools</a> — 23 free developer tools, all client-side, all open source.</em></p>
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