Schema.org Generator

Create structured data markup for articles, products, organizations, events, and more.

freeworks offlinenothing uploaded
Input
Output
—

About schema.org generator

Schema.org Generator does its work in front of you rather than sending anything away to be processed. What you see is the whole of it.

The page holds your input in memory and nowhere else. No cookie stores it, no request sends it, and a reload wipes it.

You will find it under SEO & meta, alongside 11 other tools for the same sort of job.

Outputs ready-to-paste script tags for rich search results.

How to use it

01
Start it
Every control is on the tool itself. Keyboard shortcuts, where there are any, are listed beside it.
02
Watch it run
It updates in the page as you go. Nothing is sent anywhere, so it keeps working with the network off.
03
Close when done
Nothing is stored between visits. Reloading gives you a clean start rather than picking up where you left off.

Examples

Article structured data with author and date
Generate JSON-LD for a blog article with author, publish date, and image
Input
type: Article
name: How to Build a REST API
description: Step-by-step guide to building RESTful APIs
url: https://example.com/blog/rest-api
image: https://example.com/images/rest-api.jpg
author: Jane Developer
datePublished: 2025-01-15
dateModified: 
extraFields:
Output
<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "Article",
  "name": "How to Build a REST API",
  "description": "Step-by-step guide to building RESTful APIs",
  "url": "https://example.com/blog/rest-api",
  "image": "https://example.com/images/rest-api.jpg",
  "author": {
    "@type": "Person",
    "name": "Jane Developer"
  },
  "datePublished": "2025-01-15",
  "headline": "How to Build a REST API"
}
</script>

Questions

Does Schema.org Generator work offline?+

Yes. It is JavaScript running in this tab, so once the page has loaded it needs nothing further from the network. Put the machine in flight mode and it carries on. Nothing you do here is sent anywhere, because there is nowhere for it to go.

Does it remember anything between visits?+

No. Reload the page and it starts from nothing. There is no account, no saved state and no cookie holding your last session. That is a deliberate trade: it cannot lose your data because it never keeps any.

Is it accurate?+

Timing comes from performance.now(), the high resolution clock the browser provides, rather than from setInterval, which drifts by a few milliseconds every tick and compounds over minutes. What can still shift things is the browser throttling a tab in the background, so leave it visible if the timing matters.

Does it make a sound?+

Where a sound makes sense, it is generated with the Web Audio API rather than loaded as a file, so there is nothing to download and nothing to block. Browsers refuse to start audio until you have interacted with the page, which is why the first press is what switches it on.

Can I use Schema.org Generator on a phone?+

Yes. The controls are sized for touch and the layout collapses to one column on a narrow screen. Bear in mind that a phone locking its screen will suspend the page, and timing stops with it.