Schema Synthesizer

Turn raw text into a structured knowledge graph. Extract named entities (people, companies, places, products), link them to Wikidata, and generate ready-to-use JSON-LD Schema.org markup. No LLM — pure NER + heuristic classification.

Plans

Schema Synthesizer is free to try. Sign up for a free account to unlock more entities and JSON-LD blocks.

Anonymous

$0
  • 3 entities detected
  • 1 JSON-LD block
  • 2 analyses/day
  • No graph

Free

$0
  • Up to 20 entities
  • 3 JSON-LD blocks
  • Partial knowledge graph
  • Unlimited analyses
Sign up free

Pro

$29/mo
  • Full entity graph (50+)
  • Full JSON-LD bundle
  • Wikidata disambiguation
  • Export JSON / CSV
  • Schema drift alerts
  • CI/CD schema validation
Sign up free

How it works

1. Enter a URL

Paste any page URL (About, Team, Product). We fetch the rendered HTML and extract the main content body.

2. NER + Classification

Pure-Go Named Entity Recognition identifies people, companies, places, and products through regex + heuristic scoring. No LLM calls.

3. Schema.org Mapping

Entities map to Schema.org types (Person, Organization, etc.). Relations become edges. Output is a copyable JSON-LD @graph.