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Markdown Table Generator
Fill in a grid and get a clean GitHub-flavoured Markdown table, ready to paste.
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Quick Answer
The Markdown Table Generator lets you set a number of columns and rows, fill in a visual grid, and copies out the matching GitHub-Flavoured Markdown pipe table — a header row, a row of dashes, then your data rows. GFM tables are a GitHub extension, not part of core Markdown, so the output renders where GFM tables are supported. It runs entirely in your browser.
What the Markdown Table Generator Does
It writes the fiddly pipe-and-dash table syntax for you. Instead of lining up vertical bars by hand, you type into a grid and copy clean Markdown into a README, a GitHub issue, or any GFM-aware editor.
The first row of the grid becomes the table headers; the tool adds the required separator line of dashes automatically.
How It Works
You choose how many columns and rows you want, and a grid of input cells appears. As you type, the tool assembles the Markdown live.
It joins each row's cells with pipe characters, inserts the dash separator under the headers, and shows the finished table ready to copy.
Generation algorithm
- Set columns and rows. Pick how many columns and data rows you need; the grid resizes to match.
- Fill the cells. Type into the grid. The top row is the header; the rows beneath are your data.
- Assemble the Markdown. It joins each row's cells with pipe characters and adds the row of dashes that GFM requires under the header.
- Copy the result. The finished pipe table appears in the output box, updating live, ready to paste.
The Markdown it builds
| Header 1 | Header 2 |
| --- | --- |
| cell | cell |Worked example
Headers Name, Age and a row Alice, 30 → a 2-column GFM pipe table with a --- separator lineThis is GitHub-Flavoured Markdown table syntax — a GFM extension. Core CommonMark has no tables, so it renders as a table only where GFM tables are supported.
Privacy
The table is built entirely in your browser as you type. Nothing you enter is uploaded, stored or logged.
There is no account or history; closing the tab clears the grid.
Technical Details
| Output | GitHub-Flavoured Markdown (GFM) pipe table |
|---|---|
| First row | Headers |
| Separator | A line of dashes under each header |
| Alignment | None (no colon markers) |
| Empty cell | Becomes a single space |
| Processing | 100% in-browser |
Standards & references
- GitHub-Flavoured Markdown (GFM) — defines the pipe-table syntax: a header row, a delimiter row of dashes, then data rows separated by pipe characters.
- CommonMark — the core Markdown spec has no table syntax, so a plain CommonMark renderer will show the output as literal pipes rather than a table.
Accuracy & Limitations
The output is GitHub-Flavoured Markdown. A renderer that supports only core CommonMark will show the raw pipes and dashes, not a formatted table.
A pipe character typed inside a cell breaks the table, because cells are separated by pipes and the tool does not escape them.
There is no column alignment — it does not add the colon markers (such as a colon beside the dashes) that GFM uses to left, right or centre a column.
An empty cell is written as a single space so the row stays valid, and the table size is fixed by the column and row counts you set.
Real-World Use Cases
README and docs tables
Build a comparison or reference table for a GitHub README without hand-aligning pipes.
GitHub issues and pull requests
Drop a tidy table into an issue or PR comment, which GitHub renders as GFM.
Static-site and wiki content
Author tables for any GFM-aware editor or static-site generator.
Quick comparison grids
Lay out a small feature or pricing comparison fast.
When to use it — and when not to
Good for
- GitHub READMEs, issues and PRs
- Any GFM-aware Markdown editor
- Quick comparison or reference tables
- Avoiding hand-aligned pipe syntax
Not the best choice for
- Renderers that support only core CommonMark
- Cells that need to contain a pipe character
- Aligned (left/right/centre) columns
- Very large tables
To build a Markdown table from data you already have as CSV, use CSV to Markdown Table; to turn finished Markdown into HTML, use Markdown to HTML.
Frequently Asked Questions
What does the Markdown table generator do?
You set the columns and rows and fill a grid; it outputs the matching GitHub-Flavoured Markdown pipe table, with a header row, a dash separator and your data rows.
Is this standard Markdown?
It is GitHub-Flavoured Markdown (GFM). Core CommonMark has no table syntax, so the table renders only where GFM tables are supported, such as on GitHub.
Where will the table render correctly?
On GitHub and in any GFM-aware editor or static-site generator. A plain CommonMark renderer will show the raw pipes instead.
What happens if I type a pipe in a cell?
It breaks the table, because pipes separate the cells. Replace a literal pipe with another character or an HTML entity before pasting.
Can I align columns left, right or centre?
No. The tool does not add the colon alignment markers, so all columns use the default alignment of your renderer.
How are the headers set?
The top row of the grid becomes the header row, and the tool adds the required line of dashes beneath it automatically.
What happens to empty cells?
An empty cell is written as a single space so the row stays valid Markdown.
How do I change the table size?
Adjust the column and row counts; the grid resizes and the Markdown updates live.
How is this different from CSV to Markdown Table?
This builds a table from a blank grid you fill in; CSV to Markdown Table converts CSV data you already have into the same GFM syntax.
Is my content uploaded?
No. The table is generated in your browser; nothing is sent to a server.
Can I copy the Markdown?
Yes. The finished table is in the output box ready to copy.
Is it free?
Yes, completely free with no sign-up and no limits.
References
Documented against this tool's own code: it joins your grid cells with pipe characters and adds the dash separator to build GitHub-Flavoured Markdown — it adds no alignment markers and does not escape pipes typed inside a cell.
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