Markdown Formatter

What Gets Fixed

• Heading style normalized to ATX (#, ##, ###)
• Consistent blank lines between blocks
• List item spacing and marker consistency
• Table alignment and formatting
• Trailing whitespace removal
• Newline normalization at end of file

Frequently Asked Questions

What does the Markdown Formatter do?

It normalizes Markdown documents to a consistent style: standardizes heading syntax (ATX-style #), normalizes list markers, fixes blank line spacing, formats tables, and ensures GFM-compatible output.

Will it change the meaning of my content?

No. The formatter is purely stylistic. The rendered HTML output will be identical before and after formatting — only the raw Markdown source changes.

What is GFM?

GFM stands for GitHub Flavored Markdown. It extends standard Markdown with tables, task lists, strikethrough, and fenced code blocks. Our formatter uses remark-gfm to ensure compatibility.

Can I use this to fix Markdown from AI models?

Yes. AI models sometimes output Markdown with inconsistent spacing or heading levels. Run it through the formatter to normalize the output before using it in documentation.

Does it support very large documents?

The tool supports documents up to 500,000 characters. For most use cases (documentation pages, README files, articles) this is more than enough.

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