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About Schema.org

Schema.org is a collaborative community initiative that creates and maintains schemas for structured data used on web pages, in emails, and beyond. These vocabularies support multiple encodings such as RDFa, Microdata, and JSON-LD, and are designed to be extensible. As of 2024, over 45 million domains use Schema.org markup, powering rich experiences across search engines and applications.

Published 2026-08-08 · Links checked 2026-09-06

Schema.org in their own words

“Schema.org is a set of extensible schemas that enables webmasters to embed structured data on their web pages for use by search engines and other applications.”

Where Schema.org fits

Schema.org is tagged #structured-data, #schema, #seo, #json-ld. Each tag links to every listed tool that shares it.

  • #structured-data — the only listing with this tag so far
  • #schema — the only listing with this tag so far
  • #seo — 29 listed tools share this tag
  • #json-ld — the only listing with this tag so far

Schema.org is one of 77 Dev Tools listed on ToolDock. Also in Dev Tools: n8n, Replit, Exa — see the Dev Tools ranking (neutral, stable positions; no paid placement).

Frequently asked questions

What is Schema.org?

Schema.org is a Dev tool: Shared vocabulary for structured data on the web. It is listed on ToolDock with a direct link to its official site.

Is Schema.org free?

Yes — Schema.org is listed as free on ToolDock. Pricing label set at listing time; official pricing page linked where verified — see the official website for current details.