HTML Table to CSV Converter - Online Extract Data

Our tool parses your HTML code using the browser's built-in DOMParser, extracts all <table> elements, and converts them into CSV (Comma-Separated Values) format. It intelligently handles rowspan and colspan attributes by expanding merged cells, ensuring your CSV data remains accurate and complete. The conversion happens entirely in your browser — no data is ever uploaded to any server.

Cells with colspan are expanded by duplicating their content across the specified number of columns. Cells with rowspan are expanded by repeating their value in the corresponding rows below. This ensures the CSV output maintains a consistent grid structure with no missing data points — unlike simple parsers that may skip merged cells entirely.

Microsoft Excel sometimes misinterprets UTF-8 encoded CSV files, displaying non-ASCII characters (like accented letters or symbols) as garbled text. Adding a Byte Order Mark (BOM) at the beginning of the file signals to Excel that the file is UTF-8 encoded, ensuring characters display correctly. If your data contains only basic ASCII characters, the BOM is unnecessary. We recommend enabling this option if you plan to open the CSV in Excel.

Yes! When your HTML contains multiple <table> elements, our tool detects all of them and lets you switch between tables using the selector buttons. You can preview and download each table individually. If you need all tables combined, you can download them one by one or concatenate the CSV outputs manually — each table is exported with its own header row for clarity.

Comma (,) — Standard CSV, compatible with most spreadsheet applications.
Semicolon (;) — Common in European locales where commas are used as decimal separators.
Tab — Produces TSV (Tab-Separated Values) files, often preferred for data import in databases and analytics tools.
Pipe (|) — Useful when your data contains many commas or semicolons, reducing the need for field quoting.

Absolutely secure. All processing happens client-side in your browser using JavaScript. Your HTML code never leaves your device — there is zero server communication. You can verify this by disconnecting your internet after loading the page; the tool will continue to work perfectly. This makes it ideal for sensitive data, internal reports, and confidential information.

The converter supports any valid HTML table structure: tables with <thead>, <tbody>, <tfoot>, mixed <th> and <td> cells, nested tables (inner tables are extracted separately), tables with inline styles or classes, and even malformed HTML (the browser's parser is forgiving). It works with complete HTML documents as well as partial table snippets.

By default, fields are quoted with double quotes (") only when they contain the delimiter character, double quotes themselves, or line breaks — following RFC 4180 standards. Internal double quotes are escaped by doubling them (""). If you enable "Quote All Fields," every field is wrapped in double quotes regardless of content, which some legacy systems require. The output is always valid CSV that any spreadsheet application can parse correctly.

This specific tool is designed for HTML-to-CSV conversion. However, the reverse process (CSV to HTML Table) is equally straightforward — many online tools and libraries can generate HTML tables from CSV data. If you frequently need bidirectional conversion, consider bookmarking both an HTML-to-CSV and a CSV-to-HTML converter for your workflow.

Copying tables directly from webpages often results in inconsistent formatting, missing data, or unwanted characters when pasted into spreadsheets. Our converter gives you clean, properly-escaped CSV output that preserves the exact table structure. It also handles edge cases like merged cells, special characters, and multi-table pages — things that simple copy-paste cannot manage reliably. Plus, you get full control over delimiters, encoding, and quoting options.