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JSON to SQL
Fun & miscellaneous //en/tools/json-to-sql
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Loading tool
The tool is loaded only when you open it.
All processing for this tool happens in your browser. Your input is not sent to a server.
About this tool
Enter a table name and a JSON object or array of objects. The tool gathers columns, quotes identifiers and strings, and writes NULL for missing fields.
Common uses
- Turn a small JSON dataset into initialization SQL.
- Check field mapping, string escaping, and NULL values in an INSERT result.
How to use it
- 1.Enter a table name and paste a JSON object or object array.
- 2.Generate the INSERT statement.
- 3.Copy the SQL and review it in the target database before execution.
Limits and notes
- Input is limited to 1,000 rows, 100 columns, and 2,000,000 characters; the tool creates a generic INSERT statement, does not choose a dialect, and never executes SQL.
Frequently asked questions
Can I enter a single object?
Yes. A single object becomes one row, and an array of objects becomes multiple rows.
What happens when a row lacks a field?
The tool uses the union of all object keys as columns and writes SQL NULL for a missing value.