SEO Schema Markup

Free#18 of 24 in Schema Markup Tools

SEO Schema Markup: A free web toolkit for generating and checking common JSON-LD schema markup. Ranked #18 of 24 in Schema Markup Tools by our editors (7.3/10); pricing: Free plan; best for free common-schema generators.

7.3/10★★★★☆Editor score

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At a glance

• Editor score
  7.3 / 10
• Pricing
  Free plan
• Best for
  Free common-schema generators
• Free plan
  Yes
• Paid from
  Free
• Schema validation
  Yes
• Facts checked
  20 Sep 2026

• Where it wins

  • Covers FAQ, Product, Article, Local Business, Event, and more
  • Validates JSON-LD or full-page HTML
  • Supports Shopify, WordPress, and Google Tag Manager

• Where it doesn't

  • No API for programmatic schema generation
  • No bulk generation workflow
  • No monitoring features

Our verdict on SEO Schema Markup

SEO Schema Markup is a browser-based toolkit for website owners, marketers, developers, and SEO practitioners who need to generate and validate JSON-LD structured data. Its generators cover FAQPage, Product, Shopify Product, Article and author, Local Business, Restaurant, Organization, BreadcrumbList, Event, Review, and aggregateRating markup. The Product generator includes fields for price, availability, and ratings, while the validator checks either JSON-LD or full-page HTML. The toolkit is free, requires no signup, and is open source under the MIT license.

Its strongest fit is breadth across common schema tasks without a paid tier or account requirement. The published feature set supports workflows involving Shopify, WordPress, and Google Tag Manager, and the dynamic Shopify Product schema generator gives Shopify-related work a dedicated path. Full-page validation is also useful when checking structured data in the context of an entire page rather than reviewing JSON-LD in isolation. For teams working with standard content, product, local business, or event markup, the range of generators keeps the toolkit focused on practical coverage.

SEO Schema Markup is less suitable for larger or highly automated operations. The published positioning does not include an API, bulk generation, or monitoring, so teams that need programmatic production, high-volume processing, or ongoing checks should choose a tool built around those workflows instead. Its scope is better aligned with individual pages and common schema types than with broader schema management. Pick it for free, browser-based generation and validation across familiar integrations; look elsewhere when automation, bulk handling, or monitoring is central to the job.

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SEO Schema Markup pricing

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SEO Schema Markup fact sheet

SEO Schema Markup integrations

SEO Schema Markup lists 3 integrations on its own site.

• Shopify
• WordPress
• Google Tag Manager

Alternatives to SEO Schema Markup

• Schema AppA broad enterprise workflow for authoring, deploying, validating, and monitoring schema markup.9.4
• JSON Schema App SaaS SchemaA focused SaaS schema tool with automated generation, validation, and monitoring.9.2
• SDSchema.devA free toolkit for building, validating, testing, and deploying structured data.9.0

See all SEO Schema Markup alternatives →

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Featured on iTechGuides

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update