SQL DDL to JSON Schema Converter
Convert SQL CREATE TABLE definitions into draft-07 JSON Schema models with type mappings and required lists.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. No data is ever transmitted across the network.
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.
How to Use SQL DDL to JSON Schema Converter
Paste your SQL DDL statement with column definitions.
Review the mapped Draft-07 JSON Schema with data types and required fields.
Copy the JSON schema code or download the schema.json file directly.
Frequently Asked Questions
How are NOT NULL columns handled?
Columns with NOT NULL constraints are automatically compiled into the JSON Schema's 'required' array.
Is my database schema uploaded to a server?
No, SQL parsing and JSON generation run 100% in your browser memory with zero network requests.
Related Unit & Code Converters Tools
View all →Calculate exact file download & transfer times across bandwidth speeds.
Convert Bytes, KB, MB, GB, TB, PB with binary vs decimal bases.
Convert CSV to JSON and JSON to CSV with custom delimiters and exports.
Encode plain text to Base64 or decode Base64 back to text.