Schema.org vs JSON-LD: are they the same thing?
These two terms get confused constantly. Schema.org is the vocabulary (the list of types and properties); JSON-LD is the format for embedding that vocabulary in your HTML. You need both, and they work together. JSON-LD is Google's recommended format and what every modern site should use.
It's not a versus — Schema.org is the vocabulary, JSON-LD is the format. Use Schema.org types and properties expressed in JSON-LD format. Avoid older formats like Microdata and RDFa unless you have a specific reason to use them.
Side-by-side breakdown
| Dimension | Schema.org | JSON-LD |
|---|---|---|
| What it is | Vocabulary of types/properties | Format for embedding structured data |
| Maintained by | Google, Microsoft, Yahoo, Yandex | W3C standard |
| Where it lives | schema.org documentation | JSON in <script> tag in HTML |
| Google support | Primary supported vocabulary | Preferred format |
| Ease of maintenance | Same regardless of format | Easiest format (separate from HTML) |
| Alternative formats | N/A | Microdata, RDFa (legacy) |
Who should choose what
Choose Schema.org if…
Everyone needs Schema.org as the source vocabulary. There's no alternative.
Choose JSON-LD if…
Everyone should use JSON-LD as the format in 2026. It's cleaner, easier to maintain, and Google's preferred format.
Still not sure which is right?
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