What Is Markdown? A Complete Guide to Lightweight Markup
Learn what Markdown is, how it works, and why it has become the go-to format for documentation, notes, and web content. Includes syntax guide and practical tips.
Jun 23, 2026
Markdown Table Builder
Visually build and edit Markdown tables.
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First row is treated as header
What is a Markdown Table?
Markdown tables use pipes (|) and dashes (-) to create structured data displays. They are widely used in GitHub README files, documentation, and static site generators.
The first row is the header, the second row is the separator (with --- for each column), and subsequent rows are data rows. Column alignment can be adjusted by adding colons to the separator row (:--- for left, :---: for center, ---: for right).
How to Use
- Set dimensions — Enter the number of rows and columns, then click Resize.
- Edit cells — Click on any cell to edit its content. The first row is treated as the table header.
- Add rows/columns — Use the Add Row or Add Column buttons to expand the table.
- Copy or download — Use the Copy button to copy the Markdown to your clipboard, or Download to save as a .md file.
Frequently Asked Questions
Can I use this table in GitHub?
Yes. The generated Markdown follows the GitHub Flavored Markdown (GFM) table syntax and works in GitHub README files, issues, pull requests, and comments.
How do I align columns?
Column alignment is controlled by colons in the separator row: :--- (left), :---: (center), ---: (right). You can edit the separator row in the output to change alignment.
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