JSON-LD schema generator, free

JSON-LD is the format Google recommends and the only one it reads reliably. This builds it for you, validates as you type, and leaves out the properties Google ignores.

Paste the output into a <script type="application/ld+json"> tag anywhere in the page. Position in the HTML does not matter; being in the HTML does.

How it works

1. Fill in the fields for your page.
2. The JSON-LD is built as you type, in your browser.
3. Copy it into a script tag on the page it describes.

Nothing is uploaded and no account is needed. The generator also builds Breadcrumb schema generator, FAQ schema generator, Product schema generator, Article schema generator, and the full generator covers every type at once.

Check what you produced with the schema validator, and see whether schema markup is worth adding at all: it is not a ranking factor, and this site says so on the page that sells it.