SQL to JSON Schema Converter
Convert SQL CREATE TABLE statements to JSON schema instantly. Parse columns, types, and constraints. Free online tool.
How to Convert SQL to JSON Schema
- 1 Paste your SQL CREATE TABLE statements into the input area
- 2 Or upload a .sql file containing table definitions
- 3 Toggle options for pretty print and including constraints
- 4 Click 'Convert to JSON' to generate the schema
- 5 Copy or download the JSON schema file
Frequently Asked Questions
Is my code or data stored anywhere? ▼
No. All developer tools process data locally in your browser. Nothing is sent to any server or logged.
Can I use these tools offline? ▼
Yes! After the initial page load, most developer tools work without an internet connection.
Are there API limits? ▼
No limits. Since processing happens in your browser, you can use the tools as much as you need.
Is the output compatible with production use? ▼
Yes. Our tools produce standard-compliant output suitable for production environments.
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Last updated: January 15, 2026 · v2.1