CSV ⇄ HTML Table Converter
Need to convert between CSV files and HTML tables?
Transform CSV data into clean semantic <table> HTML code, or upload an HTML webpage to extract table contents into a spreadsheet CSV.
Runs 100% locally in your browser for total confidentiality.
Select conversion mode:
Drop your CSV file here or click to browse
Processed locally — never uploaded
How the conversion works
Direction 1: Converting CSV to HTML Table
- Select "CSV → HTML": Choose this option from the direction dropdown above.
- Add your CSV file: Drag and drop your
.csvor.tsvfile into the box to view a table preview. - Generate semantic markup: Click Convert. The converter treats the first line as table headers (
<th>) within<thead>and all subsequent rows as table data cells (<td>) inside<tbody>, escaping special characters to valid HTML entities. - Download your HTML: Save the output as a
.htmlfile or copy the table snippet into your web project or CMS editor.
Direction 2: Converting HTML Table to CSV
- Select "HTML → CSV": Switch the direction dropdown to enable HTML table extraction.
- Upload your HTML document: Drop your
.html,.htm, or.txtfile containing a web table. - Extract spreadsheet data: Click Convert. The parser uses the browser DOM to locate the table, extract text contents from headers and rows, strip inner tags, clean whitespace, and compile the data into CSV format.
- Download your CSV: Save the extracted file as a clean
.csvready for Microsoft Excel, Google Sheets, or data analysis tools.
Why use our offline HTML table generator?
- Two-Way Bidirectional Utility: Generate clean HTML table snippets from spreadsheets, or scrape web tables directly into standard CSV files.
- Clean & Semantic HTML: Generates standards-compliant
<table>markup with proper<thead>and<tbody>divisions and zero inline style bloat. - Automatic Entity Escaping: Safely handles special characters like
&,<, and>so your code renders without layout breaks. - 100% Private & Secure: Runs entirely in your local browser environment with zero network transmission.
Frequently asked questions
How do I convert a CSV file to an HTML table?
Select "CSV → HTML" from the direction selector, upload or drop your CSV file, and click Convert. The tool parses column headers into <th> cells within a <thead>, maps rows into <td> cells within a <tbody>, escapes special characters, and outputs clean semantic HTML table code.
How do I convert an HTML table back into a CSV file?
Select "HTML → CSV", upload your HTML file (.html, .htm, or .txt), and click Convert. The tool parses the document structure, reads all rows and cells from the <table> elements, cleans whitespace, and generates a structured CSV spreadsheet file.
What HTML structure does the converter produce?
It outputs clean, semantic HTML5 markup: a <table> element containing <thead> and <tbody>, with <tr>, <th>, and <td> cells. It avoids hardcoded inline CSS styles or deprecated presentation attributes, allowing you to easily style the table with your own CSS classes.
How are HTML entity characters (&, <, >, ") handled?
When converting CSV to HTML, special characters such as "&", "<", ">", and quotes are properly escaped to their HTML entities (&, <, >, ") to prevent syntax errors or rendering issues. When converting HTML to CSV, HTML entities are decoded back into readable text.
What if my HTML file contains navigation, styling, or multiple tables?
The tool uses browser DOM parsing to locate the primary <table> element within the page, ignoring external scripts, styles, navigation bars, and wrappers. It extracts only the tabular data rows and cell text.
Can I copy-paste HTML table markup into a file to convert it?
Yes. You can paste any HTML snippet containing a <table> tag into a text file, save it as a .html or .txt file, and upload it into the converter.
Is my data or HTML document uploaded to any server?
No. All parsing and conversion occurs completely client-side in your web browser. Neither your CSV data nor your HTML files are ever uploaded or transmitted across the network.