Markdown Table Generator

No. Your table data is never sent to our servers - all editing, generation, import parsing, and copy/download happens directly in your browser on your device using JavaScript. There are no network requests at all - the tool does not even fetch fonts or analytics scripts.

The generated syntax is GitHub Flavored Markdown (GFM) pipe-table format with alignment colons in the separator row. It renders correctly in GitHub, GitLab, Bitbucket, Gitea, Obsidian, Notion, HackMD, Stack Overflow, Reddit, Discord, Hugo, Jekyll, Astro, Gatsby, Next.js MDX, MkDocs, Docusaurus, and any Markdown viewer that supports pipe tables.

Yes, two ways. Click the Select button to open the import panel, then choose CSV / TSV mode to paste comma- or tab-separated data (the delimiter is auto-detected), or choose Markdown mode to paste an existing pipe-table. In Markdown mode, the tool also auto-detects per-column alignment from the :--- / :---: / ---: separator row so the round-trip is faithful. Both modes also support file upload (.csv, .tsv, .txt for CSV mode; .md, .txt for Markdown mode).

Three: Markdown (the primary output, pretty-printed with column-width padding so the raw text is readable), HTML (a clean <table>/<thead>/<tbody> structure with inline text-align styles), and CSV (RFC 4180 quoted). Each format has its own Copy and Download button - six output buttons total.

The Data Rows input is capped at 50 and the Columns input is capped at 20 (so up to 51 visible rows including the header, by 20 columns = 1020 cells). These are UI limits, not memory limits - they keep the editor responsive and the generated Markdown readable. For larger datasets, the CSV to SQL tool or a real spreadsheet is a better fit.

Yes. The tool keeps a 50-step undo / redo history of every change to rows, columns, cell content, and alignment. Press Ctrl+Z (Cmd+Z on Mac) to undo and Ctrl+Y or Ctrl+Shift+Z (Cmd+Shift+Z on Mac) to redo, or use the Undo and Redo buttons in the top-right toolbar.

Select the text inside any cell and press Ctrl+B (Cmd+B on Mac) to wrap it in ** for bold, or Ctrl+I (Cmd+I on Mac) to wrap it in * for italic. The wrapping is the standard Markdown inline syntax, so it renders correctly in the live preview and in any Markdown viewer.

No. As soon as you put any content in any cell, the rows, columns, cell data, and per-column alignments are saved to your browser's localStorage under the key "markdown-table-generator" and restored automatically on the next visit. Click Clear to wipe the table back to the default 3x3 grid and remove the persisted data immediately.

Edit your table in a familiar grid layout. The first row is labelled "Header" and is always present; data rows are labelled Row 1, Row 2, ... in the left gutter. Every cell is an editable text input that updates the Markdown output in real time as you type.

Set the exact number of data rows (1-50) and columns (1-20) using the number inputs at the top, or click + Row / + Column to grow the table incrementally. The cell grid resizes immediately.

Click the arrow button above any column header to cycle its alignment through left (←), center (↔), and right (→). The alignment is encoded in the Markdown separator row using colons (:---, :---:, ---:) and reflected in the live HTML preview.

Each row label has ▴ / ▾ buttons to insert above or below, ↑ / ↓ buttons to move up or down, and a × button to delete. Each column header has ◂ / ▸ buttons to insert left or right, ← / → buttons to move horizontally, and a × button to delete. The header row cannot be moved or deleted.

Click Transpose to swap the table's rows and columns - rows become columns and columns become rows in a single click. Useful when you realize your data is wide but should be tall (or vice versa).

Every change to dimensions, cell content, alignment, row/column order, or imports is pushed onto an undo stack of up to 50 snapshots. Click Undo and Redo in the top-right toolbar, or press Ctrl+Z / Ctrl+Y / Ctrl+Shift+Z (Cmd on Mac) anywhere in the page.

Tab moves to the next cell (Shift+Tab to the previous), Enter moves down to the same column, and Arrow Up / Arrow Down move vertically without disturbing your typing position. Faster than reaching for the mouse on every cell.

Press Ctrl+B (Cmd+B on Mac) inside a cell to wrap text in ** for bold, or Ctrl+I (Cmd+I) to wrap it in * for italic. If you have a text selection, only the selection is wrapped. If nothing is selected but the cell has content, the entire cell value is wrapped. Empty cells are left alone. The wrapping is standard inline Markdown so it renders correctly in the live preview and in any Markdown viewer.

Click the Select button to open the import panel, choose CSV / TSV mode, and paste comma- or tab-separated data. The delimiter is auto-detected (tab if any are present, otherwise comma). The first line becomes the header row, remaining lines become data rows, and the table dimensions adjust automatically.

Switch the import panel to Markdown mode and paste an existing pipe-table. The tool parses the rows AND auto-detects per-column alignment from the separator row's :--- / :---: / ---: colons - so a round trip from Markdown -> editor -> Markdown is faithful, including alignment.

Both import modes have an Upload File button. CSV / TSV mode accepts .csv, .tsv, and .txt files. Markdown mode accepts .md and .txt files. The file is read locally with FileReader - nothing is uploaded.

Six buttons sit above the Generated Markdown box: Copy Markdown, Download Markdown (.md), Copy HTML, Download HTML (.html), Copy CSV, and Download CSV (.csv). Markdown is the primary output; HTML produces a clean <table>/<thead>/<tbody> structure with inline text-align styles; CSV uses RFC 4180 quoting (cells with commas, quotes, or newlines are wrapped in double quotes with internal quotes doubled).

Cells are padded with spaces so every column lines up vertically in the raw Markdown source. This makes the .md file readable in plain-text editors and diffs even before it is rendered. The padding does not affect how the table renders in any Markdown viewer.

A rendered HTML version of your table appears in the Preview panel below the Markdown output, complete with the per-column alignment you set. It updates instantly with every cell edit so you can verify the table before copying or downloading.

Each Copy button briefly shows the label "Copied!" for 1.5 seconds after clicking, so you know the clipboard write succeeded. Three independent confirmation states for the three output formats.

As soon as any cell has content, the rows, columns, cell data, and per-column alignments are saved to your browser's localStorage under the key "markdown-table-generator" and restored automatically on the next visit. The save only fires when the table has data, so an empty default grid does not overwrite a previous session.

Click Clear to wipe the table back to the default 3x3 empty grid, reset alignments to left, and remove the persisted localStorage entry in a single action - useful when starting on a fresh table.