JSONToonPro
JSON converter tool

JSON to SQL Converter Online

Convert JSON arrays, objects, and API responses into SQL CREATE TABLE schemas and INSERT statements in one click. Choose PostgreSQL, MySQL, or SQLite, flatten nested JSON, infer column types, and download a ready to use SQL file. Everything runs locally in your browser.

100% client sidePostgreSQL, MySQL, SQLiteCopy and download
3 x 9
Input/ JSON
749 chars41 lines
Output/ PostgreSQL SQL
704 chars18 lines

How to convert JSON to SQL

Three steps, zero setup
01

Paste JSON data

Add a JSON array, object, API response, or seed data export. Use the sample button to test nested fields and arrays.

02

Pick SQL options

Set table name, choose PostgreSQL, MySQL, or SQLite, then toggle schema generation, nested flattening, and identifier quoting.

03

Copy or download SQL

Generate SQL live as you type. Copy it into your SQL client or download a .sql file for imports, seeds, and migration drafts.

Built for seed data and imports

Turn JSON exports into practical SQL for local databases, demos, test fixtures, admin imports, and migration drafts without sending sample records anywhere.

100% client side

Data stays in your browser. No uploads, server logs, or database payload storage.

Instant SQL output

Generate CREATE TABLE and INSERT statements immediately from JSON input.

Dialect aware

PostgreSQL, MySQL, and SQLite options tune booleans, JSON types, and identifiers.

Nested JSON ready

Flatten nested keys into columns or preserve objects and arrays as JSON values.

SQL to JSON

Parse common INSERT statements back into clean JSON for inspection or reuse.

SQL workflow

Copy SQL or download a ready to use file for imports, seeds, and drafts.

Frequently asked questions

8 answers
Paste a JSON object or JSON array into the input panel. Choose a table name and database dialect, then the converter generates CREATE TABLE and INSERT statements instantly. Copy the SQL or download it as a .sql file.

SQL INSERT to JSON Converter

Need to go the other direction? The SQL to JSON tab converts common INSERT INTO statements back to structured JSON arrays. Paste your SQL INSERT statements and get clean JSON output for re-importing, testing, or working with your data in JavaScript, Python, or any other language.

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