What Is a Markdown Formatter?
A markdown formatter is a tool that automatically cleans up and standardizes your markdown files. It fixes inconsistent heading levels, normalizes spacing between sections, aligns list indentation, and removes trailing whitespace. The result is cleaner, more readable markdown that follows consistent style conventions.
How to Format Markdown Online
- Paste your markdown content into the editor on the left.
- Click the Format button.
- The cleaned-up markdown replaces the input. Copy or download the result.
What Gets Formatted?
- Heading levels normalized (consistent # usage)
- Blank lines added between sections for readability
- List indentation standardized (2 or 4 spaces)
- Table columns aligned with proper padding
- Trailing whitespace and extra blank lines removed
- Emphasis markers standardized (* vs _ usage)
Formatting Rules Applied
The formatter follows a strict set of rules based on CommonMark best practices. Headings get a blank line before and after them. Lists use consistent markers (- for unordered, 1. for ordered). Code blocks use triple backticks with language identifiers when present.
Tables are reformatted with aligned columns, padded cells, and consistent separator rows. This makes the raw markdown source as readable as the rendered output.
Frequently Asked Questions
What formatting rules does this tool apply?
The formatter normalizes heading levels, adds consistent blank lines between sections, aligns list indentation, fixes trailing whitespace, and standardizes emphasis markers. It follows CommonMark best practices for clean, readable markdown.
Does it change my content?
No. The formatter only adjusts whitespace, indentation, and syntax style. Your actual text content, links, images, and code blocks remain unchanged. It is a non-destructive cleanup tool.
Does it support CommonMark and GFM?
Yes. The formatter handles both CommonMark and GitHub Flavored Markdown syntax, including tables, task lists, and fenced code blocks.
Can I format just the tables in my markdown?
The formatter processes the entire document. It will align your table columns and normalize cell padding as part of the full formatting pass. There is no option to format only specific sections.