What input formats are supported?

Comma-separated (CSV), tab-separated (TSV), and data copied directly from Excel or Google Sheets, which pastes as tab-separated values.

Does it handle quoted CSV fields?

Yes. Quoted fields containing commas, quotes, or line breaks are parsed correctly following the common CSV quoting rules.

Can the first row be a header?

Yes. Enable the header-row option and the first line is emitted inside with cells; otherwise every row is a normal body row.

No. Parsing and HTML generation run entirely in your browser, so your spreadsheet data is never sent anywhere.

Can I paste straight from Excel or Google Sheets?

Yes. Spreadsheets copy cells as tab-separated values, which auto-detect handles, turning your selection into an HTML table instantly.

What happens to commas inside a value?

If the value is wrapped in double quotes, the parser treats the comma as part of the text rather than a delimiter, so the columns stay correct.

Is special HTML inside cells escaped?

Yes. Characters such as , and & in your data are escaped in the output so they display as text and cannot break or inject markup.

Table to HTML Converter

Paste columns copied from Excel, Google Sheets, or a CSV file and convert them into a clean, semantic HTML table with an optional header row — copy the result and paste it anywhere.

Updated June 2026

Files never leave your browser

CSV / TSV Data

Delimiter

First row is header

How to use Table to HTML Converter

The Table to HTML converter turns CSV, TSV, or spreadsheet data into a clean, semantic HTML table. Paste columns copied straight from Excel or Google Sheets, or a raw CSV file, choose your delimiter (or let it auto-detect), and decide whether the first row is a header. The parser handles quoted fields containing commas and line breaks, and everything runs in your browser so your data is never uploaded.

Paste your CSV, TSV, or copied spreadsheet rows into the input box.
Choose a delimiter or leave it on auto-detect.
Toggle "First row is header" if your data has column titles.
Click "Convert to HTML" and copy the generated table.

Your data never leaves your device — 100% private processing.

Delimiter auto-detection

When set to auto, the converter inspects the first non-empty line and counts how often each candidate delimiter — tab, semicolon, pipe, and comma — appears, then picks the most frequent. This handles the common cases: CSV files use commas, data copied from spreadsheets pastes as tab-separated values, and many European exports use semicolons. If detection guesses wrong on unusual data, simply pick the correct delimiter from the dropdown.

Quoted fields and escaping

Real CSV data often contains commas inside values, which are wrapped in double quotes to distinguish them from delimiters. The parser follows these rules: a quoted field can contain the delimiter, line breaks, and escaped quotes written as two double quotes. Cell values are also HTML-escaped on output so characters like < and & display as text rather than breaking the markup or injecting unintended tags.

Worked examples

CSV with header

Inputs: Name,City\nAda,London

Result: Table with Name/City header and one row

Tab-separated paste

Inputs: a<tab>b (auto-detect)

Result: Detects tab delimiter and builds the table

Quoted comma

Inputs: "London, UK",Ada

Result: Keeps "London, UK" as a single cell

Glossary

CSV: Comma-separated values: a plain-text format where fields are separated by commas and rows by line breaks.
TSV: Tab-separated values: like CSV but using tab characters, the format spreadsheets use when you copy cells.
Delimiter: The character that separates fields in a row, such as a comma, tab, semicolon, or pipe.
Quoted field: A value wrapped in double quotes so it can safely contain the delimiter or line breaks.

Frequently Asked Questions

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Why use Table to HTML Converter?

Convert CSV, TSV, and spreadsheet paste into HTML in one step
Auto-detect the delimiter or choose comma, tab, semicolon, or pipe
Correctly parse quoted fields containing commas, quotes, or newlines
Optional header row emitted as accessible <thead>/<th> markup
Client-side parsing — your spreadsheet data stays private

Common use cases

Turn an exported CSV report into an HTML table for a web page
Paste a range from Excel or Google Sheets and get instant markup
Convert tabular data from a database export into a documentation table
Build an HTML table from API data you have flattened to CSV
Quickly format delimited logs as a readable table

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