Markdown Table Generator
100% private — runs on your device, never uploaded. Works offline once loaded.
Fill in an editable grid and get clean, aligned GitHub-flavoured Markdown table syntax generated live. Add or remove rows and columns and set per-column alignment. Everything runs locally in your browser.
How a Markdown table is actually built
A GitHub-flavoured Markdown table is just three kinds of line separated by pipe characters. The first line holds the header cells, the second is a separator row of dashes that tells the renderer 'this is a table', and every line after that is a data row. This tool assembles all three for you as you type, so you never have to line up pipes by hand.
The separator row also carries the alignment information. A colon on the left (:---) means left-aligned, colons on both sides (:---:) mean centered, and a colon on the right (---:) means right-aligned. Change a column's alignment in the grid and the tool rewrites that column's dashes instantly.
Why the output is padded and aligned
Markdown does not care about extra spaces inside cells — a lopsided table renders identically to a neatly padded one. But humans do care. This generator pads every cell to the width of its widest entry so the raw Markdown stays readable in your source file, in a code review, or in a plain-text diff.
That readability matters more than it sounds. Tables are one of the few Markdown constructs people edit by hand after generating them, and a well-aligned source table is far easier to tweak without accidentally breaking a column.
When to reach for this tool
Markdown tables show up everywhere developers write: README files, GitHub issues and pull request descriptions, wiki pages, documentation sites, and note apps like Obsidian or Notion-flavoured exports. Any time you need to present structured data in a repo or an issue, a table beats a bulleted list.
Writing them by hand is tedious and error-prone — one missing pipe and the whole table collapses into a line of text. Building it in a grid and copying the finished syntax removes that friction entirely.
- README comparison tables (features, versions, options)
- API documentation for parameters and return values
- Issue and pull-request templates with structured checklists
- Changelogs and release notes
Tips for tables that render everywhere
Keep tables reasonably narrow — very wide tables scroll awkwardly on GitHub and overflow on mobile. If you need multi-line content in a cell, use a <br> tag, since a literal line break inside a cell will break the row.
- Every row must have the same number of columns as the header, which the grid guarantees automatically
- A header row is required in GFM — tables without one will not render
- Escape or avoid raw pipe characters in data; this tool escapes them to \| for you
- Alignment is a rendering hint — some minimal Markdown parsers ignore it, but GitHub honours it
Frequently asked questions
Do Markdown tables need a header row?
Yes. GitHub-flavoured Markdown requires a header row followed by the dashed separator line; without them the text will not be recognised as a table. This tool always includes both.
How do I add a line break inside a cell?
Use an HTML <br> tag inside the cell text. A literal newline would end the row, so <br> is the standard way to stack text within a single cell.
Will the alignment work on every platform?
On GitHub, GitLab, and most modern renderers, yes. A few minimal Markdown parsers ignore the colon alignment markers and left-align everything, but they still render the table correctly.
Can I paste this into Notion or Google Docs?
Notion imports Markdown tables when you paste them as Markdown. Google Docs does not read Markdown natively, so you would paste it as plain text and convert manually.
What happens to a pipe character I type in a cell?
It is automatically escaped to \| in the output so it renders as a literal pipe instead of splitting your cell into two columns.
Is any of my table data uploaded?
No. The grid and the Markdown generation run entirely in your browser — nothing is sent to a server.
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