OctalOne

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Your files are processed entirely on your device. Nothing is uploaded — works offline too!

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Markdown Formatter

Format and beautify Markdown files, align GitHub Flavored Markdown (GFM) tables, and clean up lists and code fences.

Input Markdown
Beautified Output
Input Markdown

Smart & Reliable Markdown Beautifier

Writing Markdown is easy, but keeping tables aligned, list numbers sequential, and code blocks consistent across long READMEs and documentation can be painful. Our client-side Markdown Formatter uses standard Prettier Markdown parsing to perfectly align GFM tables, normalize unordered and ordered lists, and wrap paragraphs consistently.

  • GFM Table Alignment: Automatically pads table columns and alignment delimiters for clean reading in source code.
  • List Normalization: Fixes mixed bullets (*, -), renumbers ordered lists, and handles task lists (- [ ]).
  • 100% Client-Side Privacy: Your sensitive notes, documentation, and articles stay on your computer.
  • Mobile-First Editing: Easily switch between Input and Output editors on phones and tablets.

How to Beautify Markdown

Clean your documentation in 3 simple steps:

  1. Paste Content: Paste your Markdown notes or unaligned tables into the editor.
  2. Beautify: Click the Beautify button to align tables, fix indentation, and format headings.
  3. Copy or Download: One-tap copy the cleaned Markdown or download it as a .md file.

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Frequently Asked Questions

No. All Markdown formatting runs 100% client-side in your browser, keeping your notes, articles, and documentation private.

Yes! It automatically calculates optimal column widths and pads GFM tables so they are beautifully readable in raw markdown.

Yes, it fixes mixed unordered bullet styles (*, -), normalizes ordered list numbering, and formats fenced code blocks.

Yes, this tool is fully offline capable once loaded in your browser.