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Convert CSV to Markdown Table Online

Convert CSV to a Markdown table online, free and private: your data never leaves your browser. Paste CSV, an Excel file or a Markdown table, edit in a real spreadsheet grid, then export as Markdown, HTML or SQL.

Drop a CSV or Excel file here

CSV · XLSX · XLS · XLSM · XLSB

or paste your data below

How to convert CSV or Excel to a Markdown table

Three steps from raw data to formatted output.

1. Paste or upload

Paste a Markdown table or CSV directly into the landing textarea, or drop a CSV, XLSX or XLS file. Auto-detection picks the right format.

2. Edit in the grid

Fix values, reorder columns, add rows. The output updates in real time as you edit the spreadsheet.

3. Export

Choose Markdown, HTML or SQL from the dropdown. Copy the output or download as <code>.md</code>, <code>.html</code>, <code>.sql</code>, CSV or XLSX.

Need this conversion in your own app?

The file parsing behind this page is powered by TabularJS: a zero-dependency JavaScript library that converts spreadsheet files to JSON in Node.js and the browser. 16+ formats, formulas, styles and merged cells included.

npm install tabularjs Zero dependencies

Frequently asked questions

Which input formats are supported?

CSV (comma, semicolon, tab or pipe delimiters), Excel XLSX, XLS, XLSM and XLSB, and Markdown tables. The tool auto-detects the format when you paste text.

Is my file private?

Yes. Everything runs in your browser. Your CSV or Excel file is read and processed on your device. Nothing is uploaded, nothing is logged.

Can I convert a Markdown table back to a spreadsheet?

Yes. Paste a Markdown table into the landing textarea and it populates the grid automatically, preserving headers and all rows.

How does column alignment work in the Markdown output?

Use the Align option in the Output panel to choose Left (:---), Center (:---:) or Right (---:). The separator row is updated instantly without re-parsing the grid.

What HTML output options are available?

You can toggle thead/tbody wrappers, HTML entity escaping, minification, and add a custom class attribute to the table element.

Which SQL dialects are supported?

MySQL (backtick quoting), PostgreSQL, SQLite (double-quote quoting) and SQL Server (bracket quoting). The CREATE TABLE statement uses inferred types: INTEGER, REAL or TEXT.

Is there a file-size limit?

There is no server-side limit because nothing is uploaded. Very large files may take a moment depending on your computer.

Can I embed this converter in my own app?

Yes. The engine that powers this page is the TabularJS JavaScript library. You can embed it in React, Vue, Angular or plain JavaScript.

Does the Markdown output keep cell formatting?

No. The Markdown export includes structure and calculated values only — cell background color, font weight, and borders are not carried over. Charts are not exported either.