Schema.dev vs Schema Markup Info

SDSchema.dev—Visit Schema Markup Info6.8Visit

SD Schema.dev #3 in Schema Markup Tools —/10 Free plan Free plan✓ 4 of 6 features Visit Schema.dev

vs

Higher score Schema Markup Info #4 in Schema Markup Tools 6.8/10 Free plan Free plan✓ 3 of 6 features Visit site

• Schema.dev fits best

  Free structured-data builders

• Schema Markup Info fits best

  Free site-wide schema auditing

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Side by side

Feature	SDSchema.dev —/10 Visit ↗	Schema Markup Info 6.8/10 Visit ↗
At a glance
Editor score	—	6.8
Ranking	#3 in Schema Markup Tools	#4 in Schema Markup Tools
Best for	Free structured-data builders	Free site-wide schema auditing
Pricing model	Free	Free
Starting price	Not published	Not published
Free plan	✓	✓
Free trial	—	—
Deployment	Browser extension	Cloud
Platforms	Web, Chrome extension	Web
Support	Email, Community, Docs	Email
Built for	Small business, Mid-market, Enterprise	Solo, Small business
Features Schema.dev 4/6 · Schema Markup Info 3/6
Schema validation	✓	✓
Rich-result preview	Not published	✓ (best)
WordPress support	✓	✓
API access	✓ (best)	Not published
Bulk generation	✓ (best)	Not published
Markup monitoring	Not published	Not published
Specs
Supported schema types	Not published	Not published
Our review
Pros	Point-and-click JSON-LD building with guided schema fields Supports 40+ Schema types and extracts repeated page elements Includes API testing, CMS integrations, and dynamic deployment	Free browser-based generation and live-page validation Crawls sitemap URLs and groups findings by defect and template Checks JSON-LD, Microdata, and RDFa against visible page content
Cons	Advanced deployment functionality is marked as coming soon The product has a narrow focus on structured-data workflows Monitoring capabilities are not part of the published feature set	Web-only workflow with no desktop application Focused on schema markup rather than broader SEO analysis Site audits depend on published sitemap URLs or live pages
Our verdict	Schema.dev is a free structured-data toolkit for SEO professionals, marketers, and website operators. Its Chrome-based point-and-click builder generates JSON-LD without requiring users to work directly from a blank markup file. The product… Read the review →	Schema Markup Info is a free, web-based tool for creating and checking structured data. It suits site owners, developers, and SEO teams that need to generate JSON-LD, validate existing markup, and review schema across live pages. The… Read the review →

Strengths and trade-offs

• Schema.dev — where it wins

  • Point-and-click JSON-LD building with guided schema fields
  • Supports 40+ Schema types and extracts repeated page elements
  • Includes API testing, CMS integrations, and dynamic deployment

  Where it doesn't

  • Advanced deployment functionality is marked as coming soon
  • The product has a narrow focus on structured-data workflows
  • Monitoring capabilities are not part of the published feature set

• Schema Markup Info — where it wins

  • Free browser-based generation and live-page validation
  • Crawls sitemap URLs and groups findings by defect and template
  • Checks JSON-LD, Microdata, and RDFa against visible page content

  Where it doesn't

  • Web-only workflow with no desktop application
  • Focused on schema markup rather than broader SEO analysis
  • Site audits depend on published sitemap URLs or live pages

• SDSchema.dev—/10 · Free plan

  A free toolkit for building, validating, testing, and deploying structured data.

  Visit Schema.devFull verdict →
• Schema Markup Info6.8/10 · Free plan

  A free web tool for generating, validating, and auditing structured data across sites.

  Visit siteFull verdict →