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Schema Markup Generator

Generate escaped JSON-LD script templates for WebSite, Article, or Organization from visible page facts.

Privacy: your files never leave your device. All processing happens locally in your browser.

How to use

  1. 1.Choose WebSite, Article, or Organization to reveal the relevant fields.
  2. 2.Enter only facts and absolute URLs that are visible and accurate on the destination page.
  3. 3.Copy the JSON-LD script, add it to that page, and validate the final published URL with official tools.

About Schema Markup Generator

Schema Markup Generator creates a focused JSON-LD script for one of three common Schema.org types: WebSite, Article, or Organization. Choose the type, enter facts that are already visible on the page being described, inspect the generated script, and copy it into the relevant page template. Generation and validation happen entirely in the current browser tab.

Every result includes the context https://schema.org and the selected type. WebSite includes name, canonical URL, and description. Article uses headline, canonical URL, description, an embedded Person author with a name, and a publication date in YYYY-MM-DD form; an image URL is optional. Organization includes name, URL, description, and optional logo and sameAs URLs.

Required text is trimmed and cannot be empty. URL fields must be absolute HTTP or HTTPS URLs, so relative paths, JavaScript URLs, and malformed values fail visibly. Optional image, logo, and sameAs properties are omitted when blank rather than emitted as empty strings. Multiple sameAs URLs are entered one per line, validated individually, normalized, and de-duplicated.

The output uses JSON.stringify rather than manual string concatenation. Quotes, backslashes, and line breaks in text are escaped as JSON data. Less-than signs and JavaScript line-separator characters receive additional escaping so an entered closing script sequence cannot terminate the JSON-LD element when pasted into HTML. The tool never evaluates the result as code.

Article dates must be real Gregorian calendar dates, not merely strings shaped like dates. A value such as 2026-02-30 fails even though it matches the digit pattern. The accepted value remains a date without an invented time or timezone. Publishers that need dateModified, timezone-aware timestamps, multiple authors, or publisher objects should add those properties from accurate source data.

Eight property anchors are checked against the source definitions: WebSite name and URL; Article headline, author, and datePublished; and Organization name, logo, and sameAs. Tests also verify the nested Person author, optional arrays, exact context, safe script wrapper, invalid calendar handling, and rejection of a non-HTTP protocol.

Syntactically valid JSON-LD is only one requirement. Google's current guidance says structured data must represent the main visible content, use the appropriate specific type, include properties required by the relevant search feature, and avoid hidden, irrelevant, misleading, or fabricated information. The generator cannot inspect the destination page, so the publisher remains responsible for that match.

Adding structured data does not guarantee a rich result, ranking improvement, indexing, or inclusion in an AI answer. Search features can change, supported properties can differ from the wider Schema.org vocabulary, and eligibility depends on content and policy requirements outside this script. Test the final published URL with Google's Rich Results Test and inspect Search Console rather than validating only the copied snippet.

The copied script is a starting point for implementation, not a site audit. A validator can confirm syntax and some required properties but cannot prove that the claims are truthful, current, visible, or placed on the correct canonical page. Review the generated values alongside the rendered page after every material content change, and keep markup synchronized with what visitors can actually read.

This focused version does not generate Product reviews, LocalBusiness opening hours, Recipe nutrition, JobPosting salaries, Event offers, medical data, ratings, or other higher-risk schemas. It also does not crawl a URL, inject code into a site, validate a CMS, or maintain markup after page content changes. Use official type-specific documentation for schemas outside the three templates.

Methodology & sources

Build one bounded Schema.org object for WebSite, Article, or Organization; require visible-content text; accept only absolute HTTP(S) URLs; validate real ISO-style publication dates; nest Article author as Person; parse and deduplicate Organization sameAs one URL per line; omit blank optional properties; serialize with JSON.stringify plus script-safe escaping; wrap in application/ld+json; and disclose that syntax alone does not establish rich-result eligibility.

Frequently asked questions

Does valid JSON-LD guarantee a rich result?
No. Eligibility depends on supported types, complete visible content, policy compliance, and search-engine decisions.
Can I mark up content that visitors cannot see?
No. Structured data should truthfully represent the visible page it is placed on.
Why are some fields omitted?
Optional blank URLs and lists are excluded instead of producing empty or misleading properties.
Does this tool edit my website?
No. It only generates a local text snippet for you to review and implement.

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