Rich Results Schema.org Tester

Validate Schema.org structured data for SEO. Parses JSON-LD, detects Microdata and RDFa, highlights schema types, and reports common issues like invalid JSON-LD, missing @type, non-schema.org @context, and missing key properties for popular schema types.

Seo Schema Validator

naive_zing/seo-schema-validator

Bulk validate schema markup and JSON-LD across your entire website by crawling sitemaps. Generate agency-ready SEO health reports with per-page health scores for improved rich results and technical SEO audits.

Validate Dataset(s) with JSON Schema

jaroslavhejlek/validate-dataset-with-json-schema

This Actor validates items in one or more datasets against a provided JSON Schema. Use it if you planning to add a dataset validation schema to your actor and you want test it.

Extract structured microdata (JSON-LD) from webpages to audit SEO schema implementations and rich snippets.

Local Schema Generator

alizarin_refrigerator-owner/local-schema-generator

Generate Schema.org JSON-LD structured data to improve search visibility & enable rich results. Structured data helps search engines understand your business. Stars, hours & contact info in search results, improved business information display, better answers for voice assistants, enhanced local SEO

Schema.org Validator API | JSON-LD + Microdata

taroyamada/structured-data-validator

Validate JSON-LD and Microdata across multiple pages, score markup quality, and flag missing or malformed Schema.org data.