JSON to SQL Converter
ConvertersConvert a JSON array of objects to SQL INSERT statements instantly in your browser. Auto-detects column types. One-way. 100% client-side and free.
JSONjson
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SQLsql
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Input: 221 chars
About JSON to SQL Converter
The JSON to SQL converter reads a JSON array of flat objects and generates a `CREATE TABLE` statement followed by `INSERT INTO` rows. Column types are inferred from the data — numbers become `INTEGER` or `REAL`, booleans become `BOOLEAN`, and strings become `TEXT`. The table name is derived from the context or defaults to `data`. Copy or download the SQL for use in MySQL, PostgreSQL, or SQLite.
Features
- ✓Generates CREATE TABLE + INSERT INTO SQL from a JSON array
- ✓Automatic column type inference: INTEGER, REAL, BOOLEAN, TEXT
- ✓Column names derived from JSON object keys
- ✓SQL keywords are sanitised and quoted safely
- ✓Download generated SQL as a .sql file
- ✓Copy output to clipboard in one click
- ✓Web Worker processing — never blocks the UI
- ✓100% client-side — data never leaves your browser
Common Use Cases
- Importing JSON API results into SQL databases via INSERT scripts
- Generating seed SQL files from JSON fixture data for development
- Migrating JSON data exports to a relational database
- Creating SQL migration scripts from JSON data files
- Seeding test databases from JSON test data
Frequently Asked Questions
QWhat SQL dialect is produced?
The output uses standard SQL compatible with MySQL, PostgreSQL, and SQLite. Minor adjustments (e.g. BOOLEAN vs TINYINT(1)) may be needed for specific databases.
QDoes it work with nested JSON?
No — SQL tables require flat rows. Flatten nested JSON first using the JSON Formatter's query tools.
QIs my data sent to a server?
No. All conversion runs in a Web Worker inside your browser.