JSON to SQL Converter
Convert JSON arrays into SQL INSERT statements with automatic column type inference. Generate CREATE TABLE and seed data for MySQL, PostgreSQL, and SQLite.
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What is JSON to SQL Converter?
A JSON to SQL converter transforms JSON arrays into SQL INSERT statements with automatic column type inference. Generate CREATE TABLE statements and seed data for MySQL, PostgreSQL, or SQLite databases easily.
Key Benefits
- Type inference
- CREATE TABLE support
- Database seeding
- Multiple dialects
Common Use Cases
- •Database seeding
- •Data migration
- •Test data generation
- •API response import
How to Convert JSON to SQL
- Paste JSON: Enter a JSON array of objects.
- Name table: Set the target SQL table name.
- Toggle CREATE TABLE: Optionally generate a CREATE TABLE statement.
- Convert: Generate and copy or download the SQL.
Key Features
- Convert JSON arrays into SQL INSERT statements
- Automatic SQL column type inference (INTEGER, REAL, TEXT)
- Optional CREATE TABLE statement generation
- Handles nested objects and arrays as JSON text
- Sanitizes table and column names automatically
- Works with MySQL, PostgreSQL, and SQLite dialects
Frequently Asked Questions
What JSON formats are supported?
JSON arrays of objects work best. A single object becomes one row, and primitives are wrapped into a value column automatically.
How are SQL column types inferred?
Types are inferred from the values: integers become INTEGER, decimals become REAL, and everything else (including nested JSON) becomes TEXT.
Does it generate a CREATE TABLE statement?
Yes, the CREATE TABLE statement is optional. Enable it to include column definitions with inferred types before the INSERT statements.
Which SQL databases are supported?
The generated SQL uses standard DDL/DML compatible with MySQL, PostgreSQL, SQLite, and most SQL databases.