Markdown Beautifier & Validator
Format messy Markdown, catch syntax issues, and preview the result.
Markdown Beautifier & Validator
Format, validate, and clean up your Markdown with live preview and error detection
What it cleans up
- Inconsistent heading spacing and list indentation
- Trailing whitespace and odd blank lines
- Broken emphasis, links, and table alignment
- Mixed list markers (- / * / +) when you want one style
Markdown stays readable as plain text. Flavors differ (CommonMark vs GitHub Flavored Markdown). Enable GFM when you need tables, task lists, or strikethrough the way GitHub does.
Practical habits
- Prefer ATX headings (
# Title) over Setext underlines - Indent nested lists with 2 or 4 spaces — pick one and stick to it
- Fence code blocks with language tags when it helps highlighting
- Give images alt text; empty alts are a common miss
Frequently Asked Questions
What does validation check?
Syntax (unclosed emphasis, bad links), structure (heading order, tables), and consistency (list markers, indentation).
Can I change formatting rules?
Yes — heading style, list markers, indentation, and flavor-specific options where the tool exposes them.
Does it support GitHub Flavored Markdown?
Yes for common GFM features: tables, task lists, strikethrough, fenced code.
Can I export the result?
Copy Markdown or HTML, or download a file, depending on the controls in the tool.
Does it work offline?
Once the page is loaded, formatting runs in the browser. Your text stays local.
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