How do I handle NULL values?

Display as empty cell, "N/A", "-", or styled differently (gray italic). Consistent handling improves readability.

What about very wide tables?

Use responsive techniques: horizontal scroll wrapper, hide less important columns on mobile, or transpose to vertical layout. CSS overflow-x: auto helps.

Should I escape HTML in data?

Yes! Always escape user data to prevent XSS. Convert & → &, → >. Never trust database content.

SQL to HTML

Guide & TutorialOffline

Convert SQL query results to HTML table format

Convert SQL query results to HTML table format instantly with our free online SQL to HTML converter. This tool helps developers create HTML tables from SQL data for reports and web pages. Simply paste your SQL results and get HTML table output in real-time.

Include CSS styles

SQL Query Result

0 characters, 1 lines

HTML Output

About SQL to HTML Conversion

Convert SQL query result tables to HTML table format with optional styling for display in web browsers.

Supported input formats:

Pipe-separated: id | name | age
Comma-separated: id,name,age
Tab-separated: Headers and values separated by tabs

Features:

Complete HTML document with proper structure
Optional CSS styling with modern table design
Automatic HTML escaping for special characters
Responsive table layout
Hover effects and alternating row colors (when styled)

About SQL to HTML

SQL to HTML converter transforms SQL query results into HTML tables. Perfect for web reports, email templates, and quick data visualization. Produces properly structured HTML with thead, tbody, and optional styling.

How It Works

Creates HTML table structure: <table> wraps everything, <thead> contains column headers, <tbody> contains data rows. Each row becomes <tr>, each cell <td> or <th>. Special characters are HTML-encoded.

Technical Details

HTML5 table semantics: thead/tbody for structure, th scope attributes for accessibility. Escape &, <, > in content. Optional: CSS classes, inline styles, data attributes. Consider responsive design for wide tables.

Common Use Cases

Web Reports

Display database data on web pages.

Email Reports

Generate HTML tables for email newsletters.

Documentation

Create data tables for technical docs.

Quick Visualization

View query results in browser.

Code Examples

SQL to HTML Table

javascript

function escapeHTML(str) {
  if (str === null) return '<em class="null">NULL</em>';
  return String(str)
    .replace(/&/g, '&amp;')
    .replace(/</g, '&lt;')
    .replace(/>/g, '&gt;');
}

function sqlToHTML(columns, rows, options = {}) {
  const className = options.className || 'data-table';

  let html = `<table class="${className}">\n<thead>\n<tr>\n`;
  columns.forEach(col => {
    html += `  <th scope="col">${escapeHTML(col.name)}</th>\n`;
  });
  html += '</tr>\n</thead>\n<tbody>\n';

  rows.forEach(row => {
    html += '<tr>\n';
    row.forEach(val => {
      html += `  <td>${escapeHTML(val)}</td>\n`;
    });
    html += '</tr>\n';
  });

  html += '</tbody>\n</table>';
  return html;
}

Create semantic HTML table with proper escaping. Add classes for styling.

Tips & Best Practices

Always escape HTML content
Use semantic thead/tbody
Add scope to th elements
Consider responsive design
Style NULLs distinctively

Common Mistakes to Avoid

Not escaping HTML (XSS risk)
Missing thead/tbody structure
No accessibility attributes
Tables too wide for mobile

When to Use This Tool

Use SQL to HTML for web reports, email newsletters, documentation tables, and any web-based data display.

Frequently Asked Questions

Add CSS classes to table, tr, th, td elements. Or use inline styles for email compatibility. Bootstrap, Tailwind, or custom CSS can enhance appearance.