Markdown Table Generator

Markdown tables are readable but fiddly to hand-align — every pipe needs to line up, and column widths have to be recalculated whenever a cell's content changes. This tool handles that bookkeeping: build the table visually, like a small spreadsheet, and get back GFM table syntax with every column padded to the same width and the alignment markers (:---, :-:, ---:) placed correctly in the separator row.

Column alignment is a per-column setting in GitHub Flavored Markdown — it controls whether a renderer left-aligns, centers, or right-aligns that column's text, and it's set once in the row directly under the header, not per cell. Click a column's alignment button to cycle through Default, Left, Center, and Right. Everything runs locally in your browser.

• •Keep header names short — long headers force every cell in that column to pad out to match, which can make a small table sprawl wider than necessary in the raw Markdown source.
• •Use Right alignment for numeric columns (prices, counts, percentages) — most style guides right-align numbers so digits line up visually once rendered.
• •A cell containing a literal pipe (|) or a line break is automatically escaped (\|) or converted (<br>) so it doesn't accidentally break the table's column structure.
• •GFM tables need at least a header row and a separator row — this tool always keeps at least one column and one data row so the output is never invalid.