Free tools / Table converter
Convert any table to Markdown, CSV, JSON or HTML
Paste cells from Excel or Google Sheets, a table from a web page, CSV, a Markdown table or JSON. Pick the output format and copy the result. Everything happens in your browser, nothing is uploaded.
Preview as a table
Is there personal data in what you are about to paste into an AI chat? Scrub it first, also in your browser.
How it works
Paste
Paste the table in the box or open a text file. The format is recognised automatically.
Pick a format
Markdown for AI chats and GitHub, CSV for files, Excel / Sheets for spreadsheets, JSON for code.
Copy
Copy the result or download it as a file.
Questions
Which input formats are recognised?
Cells copied from Excel, Google Sheets, Numbers or LibreOffice, tables copied from a web page, CSV with commas, semicolons or tabs, Markdown tables, HTML that contains a table and JSON arrays. You do not have to say which one it is.
Is my data uploaded?
No. The conversion runs in JavaScript on this page, on your own computer. There is no account and nothing you paste is sent to a server. Once the page has loaded it keeps working without an internet connection.
What happens to merged cells?
When you paste a table that was copied from a spreadsheet or a web page, merged cells are expanded so every row has the same number of columns. The merged value is repeated in each position.
Why Markdown for AI chats?
ChatGPT, Claude and Gemini read Markdown tables reliably, and a Markdown table is much shorter than the same table in HTML. A table pasted as loose text often loses its columns.
More free tools
- Excel to Markdown: Copy cells in Excel or Sheets, get a Markdown table.
- CSV to Markdown: CSV with commas, semicolons or tabs to a Markdown table.
- Markdown table to Excel: Turn a table from an AI answer into spreadsheet cells.
- CSV to JSON: One JSON object per row, numbers as numbers.
- HTML table to Markdown: Table HTML or a copied web table to Markdown.
- HTML to Markdown: HTML or a copied piece of a web page to clean Markdown.
- Word and Google Docs to Markdown: Paste formatted text, get Markdown with headings and lists.
- Scrub online: hide emails, phone numbers, IBANs and API keys in text before you paste it into an AI chat.
Copy tables without the mess
Tables for AI copies any web table as Markdown for AI chats, or as CSV, TSV, JSON and Excel. Merged cells, footnotes and hidden rows are handled for you. Free, no account.