Best Schema Markup Tools in 2026
24 schema markup tools ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
24ranked
20free plans on this page
$14/molowest paid tier
20 Sept 2026last checked
#1 JSON Schema App SaaS Schema Top pick · 8.6 Free plan · $14/mo
#2 Schema.dev Runner-up · 8.4 Free plan · Free
#3 Baseline Labs Schema Generator Also great · 8.3 Free plan · €79/mo
- Free plan Web
- Free plan
- Yes
- Paid from
- 14 /mo
- Schema validation
- Yes
- Rich-result preview
- Yes
- Supported schema types
- 11 types
- WordPress support
- Yes
RecognisedDocumentedFree planPlatformsFree trial$14/mofirst paid tier About JSON Schema App SaaS SchemaVisit site - Free plan Web
- Free plan
- Yes
- Schema validation
- Yes
- WordPress support
- Yes
RecognisedDocumentedFree planPlatformsFree trial - Free planFree trial apiWeb
- Free plan
- Yes
- Schema validation
- Yes
- WordPress support
- Yes
RecognisedDocumentedFree planPlatformsFree trial€79/mofirst paid tier About Baseline Labs Schema GeneratorVisit site - Free planFree trial apiWeb
- Free plan
- Yes
- Schema validation
- Yes
- WordPress support
- Yes
RecognisedDocumentedFree planPlatformsFree trial€79/mofirst paid tier About Rolling SchemaVisit site - Free plan Web
- Free plan
- Yes
- Schema validation
- Yes
- Rich-result preview
- Yes
- WordPress support
- Yes
RecognisedDocumentedFree planPlatformsFree trial - extensionWeb
- Free plan
- No
- Schema validation
- Yes
- Rich-result preview
- Yes
- WordPress support
- Yes
RecognisedDocumentedFree planPlatformsFree trial - Free plan Web
- Free plan
- Yes
- Paid from
- 39 /mo
- Schema validation
- Yes
RecognisedDocumentedFree planPlatformsFree trial - Free plan Web
- Free plan
- Yes
- WordPress support
- Yes
RecognisedDocumentedFree planPlatformsFree trial - Free plan
- Free plan
- Yes
RecognisedDocumentedFree planPlatformsFree trial - Free plan Web
- Free plan
- Yes
- Schema validation
- Yes
- Rich-result preview
- Yes
- WordPress support
- Yes
RecognisedDocumentedFree planPlatformsFree trial - Free plan Web
- Free plan
- Yes
- Schema validation
- Yes
- Rich-result preview
- Yes
RecognisedDocumentedFree planPlatformsFree trial - Free plan Web
- Free plan
- Yes
- Schema validation
- Yes
- Rich-result preview
- No
- WordPress support
- No
RecognisedDocumentedFree planPlatformsFree trial - Free plan Web
- Free plan
- Yes
- Schema validation
- Yes
- Rich-result preview
- Yes
RecognisedDocumentedFree planPlatformsFree trial - Web
- Free plan
- No
- Schema validation
- Yes
- WordPress support
- Yes
RecognisedDocumentedFree planPlatformsFree trial - Free plan Web
- Free plan
- Yes
- Schema validation
- Yes
RecognisedDocumentedFree planPlatformsFree trial - Free plan Web
- Free plan
- Yes
- Schema validation
- Yes
- Rich-result preview
- Yes
RecognisedDocumentedFree planPlatformsFree trial - Free plan Web
- Free plan
- Yes
- Schema validation
- Yes
- Rich-result preview
- No
- WordPress support
- No
RecognisedDocumentedFree planPlatformsFree trial - Free plan Web
- Free plan
- Yes
- Schema validation
- Yes
- Rich-result preview
- Yes
RecognisedDocumentedFree planPlatformsFree trial - Free plan Web
- Free plan
- Yes
RecognisedDocumentedFree planPlatformsFree trial - Free plan Web
- Free plan
- Yes
- Schema validation
- Yes
- WordPress support
- Yes
RecognisedDocumentedFree planPlatformsFree trial - Free plan
- Free plan
- Yes
- WordPress support
- Yes
RecognisedDocumentedFree planPlatformsFree trial - Web
- Free plan
- No
RecognisedDocumentedFree planPlatformsFree trial - Free plan Web
- Free plan
- Yes
RecognisedDocumentedFree planPlatformsFree trial - WebRecognisedDocumentedFree planPlatformsFree trial
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which schema markup tool is ranked first on The Geeks Club?
JSON Schema App SaaS Schema is ranked #1 of 24 with a score of 8.6. Schema.dev is second and Baseline Labs Schema Generator third.
How many of these have a free plan?
20 of the 24 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, JSON Schema App SaaS Schema has the lowest first paid tier we found: $14/mo.
How is this list ranked?
Certifications are listed from the provider's own catalogue with level, role and exam. Platforms are ranked on what each publishes: a free tier or trial, price, certificates offered, the devices it runs on and the depth of its documentation. Paid placements never change a rank.
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