Free Excel to HTML Table Converter 2026

Welcome to Code Formatter Excel to HTML Converter – the easiest way to turn your spreadsheet data into web-ready HTML tables. Whether you have a complex financial report in Microsoft Excel, a product list in Google Sheets, or a simple CSV export, our tool transforms it into clean, semantic, and responsive HTML code instantly.

Manually coding HTML tables (`<table>`, `<tr>`, `<td>`) is tedious, error-prone, and time-consuming. One missing closing tag can break your entire page layout. Our online spreadsheet converter eliminates this hassle by automating the process. Just paste your data or upload your `.xlsx` file, and get perfect HTML code that you can drop directly into your website, blog, or CMS.

How to Convert Excel to HTML

You have two simple ways to use this tool:

Method 1: Copy & Paste (Fastest)

Open your spreadsheet in Excel, Google Sheets, or Numbers.
Select the cells you want to convert and press `Ctrl+C` (Copy).
Paste (`Ctrl+V`) them into the "Input Data" box on the left.
Click "CONVERT" to generate the HTML.

Method 2: Upload File (Best for Large Sheets)

Click the "Drop Excel File Here" area in the left pane.
Select your `.xlsx`, `.xls`, or `.csv` file.
The tool automatically reads the first sheet and converts it to HTML.

Key Features

We've built this tool to be robust and developer-friendly:

Smart Parsing: Automatically detects whether you pasted Tab-separated data (from Excel) or Comma-separated data (CSV).
Header Detection: The tool assumes the first row is your header row (`<th>`), generating semantic markup that is better for SEO and accessibility.
Clean Code: Generates minimal, clean HTML without inline styles, allowing you to style the table easily with your own CSS.
SheetJS Integration: Uses the powerful SheetJS library to accurately read binary Excel files directly in the browser.
Privacy Focused: No data is uploaded to our servers. All conversion happens locally in your browser using JavaScript.

Why Use HTML Tables?

While modern layouts use CSS Grid and Flexbox, standard HTML tables are still the best element for tabular data:

1. Semantic & Accessible

Screen readers rely on `<table>` tags to let visually impaired users navigate rows and columns. Our converter uses `<thead>` and `<tbody>` to enhance this accessibility.

2. SEO Friendly

Search engines like Google understand the structure of an HTML table. Well-structured data in tables can even appear as "Featured Snippets" in search results.

3. Easy to Style

Because the output is standard HTML, you can easily apply CSS frameworks like Bootstrap (`class="table"`) or Tailwind CSS to make it look great.

Best Practices for Web Tables

When using the generated code, keep these tips in mind:

Responsive Design: Large tables can break mobile layouts. Wrap your table in a `div` with `overflow-x: auto` to allow horizontal scrolling on small screens.
Keep it Simple: Avoid merging cells (colspan/rowspan) if possible, as they can complicate responsive behavior.
Align Text: Use CSS to right-align numerical data (like prices) for better readability.

Frequently Asked Questions

Does it support formulas?

No. It converts the values currently displayed in the cells. It does not transfer Excel formulas to HTML logic.

Can I convert multiple sheets?

Currently, the file uploader reads the first sheet of your workbook. To convert other sheets, please copy and paste their data individually.

Will it keep my formatting (colors, bold)?

No. We intentionally strip visual styling to give you clean, raw HTML. This ensures the table matches your website's theme rather than looking like an out-of-place Excel screenshot.

Can I convert the table back to Excel?

Yes! You can copy the generated HTML table, paste it into a text file with a `.xls` extension, and Excel will usually open it. Or simply copy the table from your browser and paste it into Excel.

Is there a row limit?

The browser can handle thousands of rows, but for web performance, we recommend keeping tables under 500 rows. For larger datasets, consider using a database and pagination.

How do I add borders?

The generated code separates structure from style. To add borders, add this CSS to your site: `table, th, td { border: 1px solid #ccc; border-collapse: collapse; }`.