Table Renderer
Edit a table in a spreadsheet-style grid and get it as a Markdown (GFM) table, HTML, CSV, TSV, JSON or JSONL. Paste cells from Excel or Google Sheets. The output updates as you type, and formulas such as =SUM(A2:A5) and custom date and duration formats are supported.
What does the Table Renderer do?
Writing a Markdown or HTML table by hand is tedious: every pipe and tag has to line up. The Table Renderer gives you a small spreadsheet to type or paste data into and renders it in the text format you need, ready to paste into a README, a wiki page, a web page or a script.
How to use
- Type into the grid, or copy cells from Excel, Google Sheets or another spreadsheet and paste them in.
- To add or remove rows and columns, click a row number or column letter and right-click it. Drag the corner of the grid to make it bigger.
- Pick an Output format. The result appears in the editor below the grid.
- For formats with named columns, choose whether to Use the first row as a header.
- Copy the result or download it (for example
result.mdorresult.csv) with the buttons in the editor corner.
Output formats
| Format | Output |
|---|---|
| Markdown(GFM) | GitHub Flavored Markdown table with padded columns; pipe characters are escaped and line breaks become <br> |
| HTML | <table> with <thead> and <tbody>; values are HTML-escaped |
| CSV / TSV | Comma- or tab-separated values |
| JSON(Double array) | An array of rows, e.g. [["a","b"],[1,2]] |
| JSON(Object array) | An array of objects keyed by the header row |
| JSONL | One JSON object per line |
When Use the first row as a header is off, column letters (A, B, C …) are used as headers and every row is treated as data.
Features
- Spreadsheet-style editing with copy and paste from other spreadsheets
- Formulas: cell references (
=A1+B1) and functions such asSUM,AVERAGE,COUNT,IF,ROUND,VLOOKUPandCONCATENATE; the output contains the calculated values - Date time format: dates are written using a pattern like
YYYY-MM-DD HH:mm:ss, with presets such as EU, US and date only - Time duration format: durations are written using a pattern like
HH:mm:ss - Live output that updates on every edit
Example
A 3 × 2 grid rendered as Markdown(GFM) with a header row:
FAQ
How do I convert an Excel range to a Markdown table?
Select the cells in Excel, copy them, click the top-left cell of the grid and paste. Then choose Markdown(GFM) as the output format.
Can I import a CSV file?
There is no file import; paste the cells into the grid instead. To convert CSV text or files to JSON directly, use the CSV / JSON Converter.
Is my data sent anywhere?
No. The grid, formulas and output are all handled in your browser.