Markdown Formatter

1. Paste your Markdown into the input box, or click Sample.
2. Choose your prose-wrap preference: Always wrap (hard-wrap at 80 chars), Never wrap (one line per paragraph), or Preserve (keep original wrapping).
3. Click Format — Prettier will normalize headings, lists, code blocks, and inline formatting.
4. Copy the result into your README, blog post, or documentation.

This formatter uses Prettier's Markdown parser, which handles CommonMark, GitHub Flavored Markdown (tables, task lists, strikethrough), and embedded frontmatter. It normalizes list markers (always -), consistent emphasis (always *), code fence lengths, and table column alignment.

Markdown is a lightweight markup language for creating formatted text using a plain-text editor. It is the default format for README files on GitHub and GitLab, documentation sites (MkDocs, Docusaurus, VuePress), blog platforms (Hashnode, Ghost, Hugo), Jupyter notebooks, and chat apps (Slack, Discord, Reddit). A Markdown formatter (or beautifier) parses the document and re-emits it with consistent syntax — uniform list markers, normalized emphasis characters, properly-aligned tables, and clean code block fencing.

Consistent Markdown formatting matters more than consistent formatting for most other formats because Markdown source is read by humans as often as the rendered HTML. A messy README leaves a bad impression on every visitor to your repository.

Yes. YAML frontmatter at the top of the document (delimited by ---) is detected and preserved. The frontmatter itself is also formatted using Prettier's YAML formatter.

Not in this tool. Prettier has a dedicated MDX parser, but it requires loading additional plugins. For MDX formatting, run Prettier locally.

No. Prettier only changes whitespace, list markers, emphasis characters, and code fence lengths — never the actual content or semantics. The rendered HTML will look identical. The source text will look cleaner.

No. Everything happens in your browser. Your Markdown never leaves your device.