JSON to MySQL Converter - Generate SQL Tables and Insert Scripts

🗄️ JSON to MySQL Schema

Automatically generate MySQL CREATE TABLE statements from JSON sample. Perfect for database design and migration scripts.

📝 Input JSON:
📤 Output MySQL Schema:
// MySQL CREATE TABLE statements will appear here...
Tables: 0
Columns: 0
Indexes: 0
💡 Example JSON Samples:
👤 User Object
Simple user with basic fields
🛍️ Product with Nested
Product with nested category and tags
📡 API Response
Typical API response structure

Online JSON to MySQL Converter: Transform JSON into SQL Instantly

Simplify your database management with our JSON to MySQL converter. Moving data from a JSON format to a relational database like MySQL often requires tedious manual mapping. Our tool automates this process by analyzing your JSON structure and generating valid SQL CREATE TABLE statements and INSERT INTO queries, allowing you to import your data into any MySQL database in seconds.

Why Convert JSON to MySQL?

While JSON is great for data exchange, MySQL is superior for complex queries, reporting, and structured storage.

Automate Database Schema Design

Manually determining column types and lengths for a MySQL table can be exhausting. Our tool inspects your JSON values to suggest the most appropriate MySQL data types (like INT, VARCHAR, or TEXT), creating a ready-to-use schema without the guesswork.

Bulk Data Migration

If you have a large array of JSON objects, manually writing INSERT statements is impossible. Our converter takes your entire JSON array and transforms it into a multi-row SQL script, making bulk data migration a breeze.

Key Features of Our JSON to SQL Tool

Our converter is designed to handle everything from simple flat objects to complex datasets.

1. Intelligent Data Type Mapping

The converter automatically identifies the best MySQL data types based on your input:

  • Integers & Decimals: Maps to INT or DECIMAL.

  • Strings: Maps to VARCHAR(255) or TEXT for longer content.

  • Booleans: Maps to TINYINT(1).

  • Nulls: Correctly handles NULL values in SQL statements.

2. Flattening Nested JSON Objects

Relational databases like MySQL don't support nested objects directly. Our tool can "flatten" nested JSON structures by using underscored column names (e.g., user_address_city), ensuring all your data is preserved in a tabular format.

3. Support for JSON Arrays

If your input is a JSON array, the tool generates a single CREATE TABLE statement followed by a series of INSERT statements for every item in the list, ensuring your entire dataset is imported correctly.

How to Convert JSON to MySQL

  1. Paste your JSON: Insert your raw JSON object or array into the input editor.

  2. Define Table Name: Give your target MySQL table a name (e.g., customers or orders).

  3. Choose Output: Select whether you want the CREATE TABLE script, the INSERT data, or both.

  4. Copy and Execute: Copy the generated SQL and run it in your MySQL client (like phpMyAdmin, MySQL Workbench, or Command Line).

Technical Insights: Optimizing MySQL Imports

Handling Long Strings

Our tool intelligently checks the length of string values. If a string exceeds standard lengths, it will automatically suggest the TEXT or LONGTEXT type to prevent data truncation during the import.

Primary Key Suggestion

If your JSON contains an id or uuid field, the tool will prioritize it as a potential Primary Key, helping you maintain relational integrity within your database.

Frequently Asked Questions (FAQ)

Does this tool support MySQL 8.0?

Yes! The generated SQL syntax is compatible with MySQL 5.7, 8.0, and MariaDB.

Can I convert a JSON array of objects?

Absolutely. This is the primary use case. The tool will scan all objects in the array to ensure the table schema accounts for all possible fields.

Is my data secure?

Yes. All conversion logic is executed locally in your browser. Your JSON data and SQL output are never sent to our servers, ensuring your database structure and information stay private.