Convert SQL CREATE TABLE statements into Draft 2020-12 JSON Schema specifications.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Paste your SQL DDL statement into the input workspace.
Inspect the generated Draft 2020-12 JSON Schema with mapped types and required fields.
Copy the JSON schema or download schema.json directly.
Standard PostgreSQL, MySQL, SQLite, and MariaDB CREATE TABLE syntax are fully supported.
Yes, columns declared with NOT NULL are added to the JSON Schema `required` array.
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