Davemi ToolsMarkdown Cleaner
Paste messy markdown, get clean output. Fixes formatting, spacing, emphasis, tables & more — without changing meaning.
Input (messy markdown)
0 lines · 0 charsRules (14)
Why clean markdown?
Messy markdown is everywhere — exported from Google Docs, Notion, CMS editors, or written by multiple team members with different styles. Inconsistent formatting causes rendering issues, Git diffs that are hard to read, and linting errors in CI pipelines. This tool standardizes everything in one click.
What it fixes
- Extra blank lines (collapses to max 1)
- Missing space after # in headings
- Inconsistent list indentation
- Mixed _ and * emphasis
- Broken link syntax
[text] (url) - Messy table alignment
- Tabs, trailing whitespace, missing EOF newline
Frequently Asked Questions
What does this tool clean?
It fixes 14 common markdown issues: extra blank lines, inconsistent headings, bad list indentation, trailing whitespace, mixed emphasis styles (_ vs *), broken link syntax, HTML comments, multiple spaces, missing final newline, messy tables, tabs, empty links, blockquote formatting, and inconsistent horizontal rules.
Will it break my code blocks?
No. The cleaner is code-block-aware — it skips content inside fenced code blocks (```) and inline code (`). Your code stays exactly as-is.
Can I disable specific rules?
Yes. Every rule has a toggle. Open Advanced Settings to enable/disable individual cleaning rules. Your preferences are remembered.
Does it upload my content?
No. All cleaning happens 100% in your browser using JavaScript string operations. Nothing is sent to any server.
What's the difference between this and the Markdown Editor?
The Markdown Editor is for writing new content with live preview. The Markdown Cleaner is for fixing existing messy markdown — like content copied from Google Docs, exported from CMSs, or formatted inconsistently by multiple authors.
Does it change my content meaning?
No. It only fixes formatting/syntax. Bold text stays bold, links stay linked, headings stay headings. The visual output when rendered will be identical or improved — never changed.
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