CSV to HTML
Paste CSV or open a file and get clean, accessible HTML table code: a thead with th cells for the header row, a tbody for the data, an optional caption, and a class on number columns so they can be right-aligned. Output just the table, the table with ready CSS, or a complete HTML page. Every value is escaped, so data containing < or & cannot break your page.
- Runs in your browser
- No sign-up
- Free to use
How to use CSV to HTML
- Paste CSV data or open a CSV file.
- Choose header, class name, caption and output type.
- Check the live preview.
- Copy the HTML or download table.html.
CSV to HTML features
Semantic markup
<caption>, <thead>, <th>, <tbody> and <td>.
Safe output
All text is HTML-escaped; nothing in the data can inject markup.
Number columns
A num class for right alignment with tabular figures.
Three outputs
Table only, table with CSS, or a complete page.
Live preview
Rendered in a sandboxed frame.
Real CSV parsing
Quotes, embedded delimiters and line breaks handled.
When to use CSV to HTML
- Publishing a price list or schedule on a website.
- Embedding data in a blog post or CMS that accepts HTML.
- Creating an HTML e-mail table from a spreadsheet export.
- Generating documentation tables from CSV.
CSV to HTML FAQ
Is the HTML safe to paste into my site?
Yes. Every cell is HTML-escaped, so characters such as <, > and & appear as text and cannot create tags or scripts.
Why use <th> for the header?
Header cells tell screen readers which column each value belongs to, and browsers can repeat them when printing. It is the accessible way to mark up tables.
What does the num class do?
It marks columns where every value is a number, so the included CSS can right-align them with tabular figures for easy comparison.
Can I change the styling?
Yes. Use your own class name and CSS, or start from the included styles.
What about very large files?
Files up to 10 MB can be opened. For huge tables, consider pagination or a data grid on the page instead of plain HTML.
Is my data uploaded?
No. The HTML is generated in your browser.
Good HTML tables from CSV
HTML tables are still the right tool for tabular data on the web: price lists, schedules, comparisons and results. Writing the markup by hand for more than a few rows is tedious, and copying from a spreadsheet often produces bloated code full of inline styles. Generating it from CSV gives clean, predictable HTML.
The generated table follows accessibility guidance. The header row becomes th cells inside thead, the data rows sit in tbody, and an optional caption describes the table. Screen readers use this structure to announce which column a value belongs to, and search engines and browser features such as reader mode understand it better.
Escaping is essential when data becomes HTML. A product name containing an ampersand or angle brackets would otherwise break the layout, and a value containing script tags could run code on your page. The converter escapes every value, which is why the sample’s <script> row appears as harmless text in the preview.
Number columns get a num class. With the included CSS they are right-aligned and use tabular figures, so digits line up and amounts can be compared at a glance. You can keep the provided styles, rename the class to match your design system, or output the bare table and style it yourself.
The preview runs in a sandboxed frame with scripts disabled, showing exactly how the table will look with the generated CSS. The CSV parser handles quoted fields, embedded delimiters and line breaks, and detects comma, semicolon, tab and pipe separators automatically.