Are null values handled?

Yes — JSON null becomes SQL NULL. Booleans become 1/0 in MySQL and TRUE/FALSE in PostgreSQL.

Is my data uploaded to a server?

No. Everything runs locally in your browser using JavaScript. Your data never leaves your device.

Columns are collected from all objects. Missing keys in a row produce NULL in the SQL output.

Yes — use the SQL to JSON Converter tool.

🔄

Convert a JSON array into SQL INSERT statements for any table. Supports MySQL, PostgreSQL and SQLite syntax. Free, browser-based.

📊 Data & CSV Tools Free Browser-based

Tool

Table name

SQL dialect

JSON array

SQL output