HTML to SQL Converter

About HTML to SQL Converter

Convert HTML tables and document structure to SQL database statements. Generate CREATE TABLE and INSERT statements compatible with MySQL, PostgreSQL, and SQLite for easy data import.

Key Features

• Table Conversion: Automatically converts HTML tables to SQL tables
• Multiple SQL Dialects: Support for MySQL, PostgreSQL, and SQLite
• CREATE TABLE: Generates table schema from HTML table headers
• INSERT Statements: Creates INSERT statements for all table rows
• Structure Conversion: Converts HTML document structure to relational format
• Auto-increment IDs: Adds primary key with auto-increment
• Column Sanitization: Cleans column names for SQL compatibility

How to Use

1. Input HTML: Paste your HTML code or upload an .html file
2. Select SQL Dialect: Choose MySQL, PostgreSQL, or SQLite
3. Configure Table Name: Set the desired table name
4. Choose Options: Enable CREATE TABLE and DROP TABLE as needed
5. Review Output: The SQL statements update automatically
6. Copy or Download: Save your .sql file for database import

Conversion Modes

• HTML Table Mode: Converts <table> elements to SQL tables with proper columns
• Structure Mode: Converts HTML document structure to hierarchical SQL table

SQL Dialect Differences

• MySQL: Uses backticks for identifiers, INT AUTO_INCREMENT for IDs
• PostgreSQL: Uses double quotes for identifiers, SERIAL for IDs
• SQLite: Uses double quotes for identifiers, INTEGER for IDs

Example Conversion

HTML Input:

<table>
  <tr>
    <th>Name</th>
    <th>Age</th>
  </tr>
  <tr>
    <td>John</td>
    <td>30</td>
  </tr>
</table>

SQL Output (MySQL):

CREATE TABLE `html_data` (
    id INT AUTO_INCREMENT PRIMARY KEY,
    `name` TEXT,
    `age` TEXT
);

INSERT INTO `html_data` (`name`, `age`) VALUES ('John', '30');

Common Use Cases

• Data Migration: Import HTML table data into databases
• Web Scraping: Convert scraped HTML tables to SQL
• Report Import: Import HTML reports into database systems
• Data Analysis: Move HTML data to SQL for analysis
• Database Seeding: Create seed data from HTML tables
• Testing: Generate test data from HTML fixtures

Column Name Sanitization

The converter automatically sanitizes column names:

• Converts to lowercase
• Replaces spaces and special characters with underscores
• Removes leading/trailing underscores
• Ensures names start with a letter or underscore
• Removes consecutive underscores

Tips for Best Results

• Table Headers: Use <th> elements for proper column names
• Clean Data: Ensure table data is well-formatted
• Dialect Choice: Select the SQL dialect matching your database
• Table Names: Use valid SQL table names (letters, numbers, underscores)
• Review SQL: Always review generated SQL before executing
• Data Types: Adjust column types in CREATE TABLE as needed

Importing Generated SQL

MySQL:

mysql -u username -p database_name < output.sql

PostgreSQL:

psql -U username -d database_name -f output.sql

SQLite:

sqlite3 database.db < output.sql

Privacy & Security

All conversions happen locally in your browser. Your HTML is never uploaded to any server, ensuring complete privacy and security.