HTML to SQL Converter

About HTML to SQL Converter

Use this HTML to SQL converter to turn any HTML table or page structure into production‑ready SQL statements. It is ideal when you need an HTML table to SQL converter, want to import HTML data into MySQL, PostgreSQL, or SQLite, or quickly build CREATE TABLE and INSERT statements from HTML.

Key Features & Benefits

• Automatic table parsing: Detects HTML <table> tags and converts them into SQL tables with columns and rows.
• Multiple SQL dialects: Generates SQL that is compatible with MySQL, PostgreSQL, and SQLite.
• CREATE TABLE + INSERT: Builds a complete schema plus data insert scripts from a single HTML source.
• HTML structure mode: When no tables are present, converts the DOM structure into a relational table for analysis.
• Safe column names: Automatically sanitizes headers into valid SQL identifiers.
• Browser‑based: All conversion runs locally in your browser, so your data never leaves your machine.

How to Use the HTML to SQL Converter

1. Paste or upload HTML: Add your HTML report, exported table, or page source in the input area, or upload an .html file.
2. Choose SQL dialect: Select MySQL, PostgreSQL, or SQLite depending on your database engine.
3. Set table name: Enter the base table name; multiple HTML tables are automatically suffixed with _1, _2, etc.
4. Toggle options: Enable CREATE TABLE and/or DROP TABLE depending on whether you are initializing or appending data.
5. Review generated SQL: The SQL output updates instantly as you change any options or HTML.
6. Copy or download: Copy the SQL to your clipboard or download it as output.sql and run it against your database.

Example: HTML Table to SQL (MySQL)

HTML input:

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

Generated SQL (MySQL):

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

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

Conversion Modes

• HTML table mode: Best for clean tabular data such as reports, exports, and admin tables.
• Structure mode: When no <table> elements exist, the tool stores the DOM tree (tag, text, attributes, parent) into a single relational table for advanced analysis.

SQL Dialect Details

• MySQL: Uses backticks (`name`) and INT AUTO_INCREMENT primary keys.
• PostgreSQL: Uses double quotes ("name") and SERIAL primary keys.
• SQLite: Uses double quotes ("name") and INTEGER primary keys.

Practical Use Cases

• Data migration from HTML: Move HTML reports and exports into a real SQL database for long‑term storage.
• Web scraping pipelines: Scrape HTML tables, then quickly convert them into SQL INSERT statements.
• Analytics & dashboards: Load HTML data into MySQL/PostgreSQL/SQLite for querying, joins, and BI tools.
• Database seeding: Turn sample HTML tables into seed data for development and tests.
• QA and testing: Convert HTML fixtures into deterministic datasets for automated tests.

Column Name Sanitization

The converter automatically turns messy table headers into safe, query‑friendly column names:

• Converts header text to lowercase.
• Replaces spaces and symbols with single underscores.
• Ensures column names start with a letter or underscore, not a number.
• Trims leading and trailing underscores and collapses duplicates.

Importing the Generated SQL

MySQL example:

mysql -u username -p database_name < output.sql

PostgreSQL example:

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

SQLite example:

sqlite3 database.db < output.sql

FAQ – HTML to SQL Converter

Does the tool infer numeric types?

By default, values are exported as TEXT so they are always valid. After import you can ALTER the table and cast columns to INT, DECIMAL, or other types as needed.

What happens if my table has duplicate or empty headers?

The converter generates safe fallback names like column_1, column_2 and ensures every column has a unique identifier.

Can I use this with large HTML tables?

Yes, but performance depends on your browser and device. For very large tables, consider splitting the HTML into smaller chunks before conversion.

Is my HTML uploaded or stored anywhere?

No. All HTML parsing and SQL generation happens in your browser. Nothing is sent to external servers, which makes it safe for sensitive internal reports.

Can I customize the generated table or column names?

You can edit the base table name directly in the UI and manually tweak the generated SQL in the output panel before executing it on your database.

Privacy & Security

All conversions are processed locally in your browser. Your HTML and generated SQL are never uploaded, logged, or stored on our servers.