Schema.biz vs uSchema
Schema.biz
schema.biz
uSchema
uschema.ioSide by side
| Figure | Schema.biz | uSchema |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 5 |
| Spec score · Schema Markup Tools | 7.5 (#11) | 7.0 (#24) |
| Support | Users can report issues or send feedback to [email protected]. | Plans include six months of priority support, while support for download, installation, activation, and licensing issues is lifetime. |
Plans
uSchema
- One Site$25, paid once
- 5 Sites$75, paid once
- 10 Sites$115, paid once
- 50 Sites$330, paid once
- Unlimited Sites$775, paid once
In their own words
Schema.biz
Schema.biz is a free browser toolkit for structured data markup, database schemas, and API specifications. Its markup tools generate, validate, and optimize JSON-LD, Microdata, and RDFa. A visual schema designer exports SQL for PostgreSQL, MySQL, SQLite, and SQL Server; database tools also diagram CREATE TABLE statements, compare schema versions, visualize queries, and offer templates. API tools validate JSON Schema, edit OpenAPI specifications, generate schemas and mock data, convert formats, and detect breaking changes. An AI Search Optimizer checks structured data readiness for ChatGPT Search, Perplexity, and Google AI Overviews. Pasted data is processed in browser JavaScript, and the maker says it is not sent to its servers. For URL-based markup checks, however, the server fetches the requested page for the browser to inspect. The free plan includes all tools without feature gates, limits, or signup. Persistent cross-device work and third-party URL crawling are not offered; an API Validator and Mock Server are marked as coming soon.