My Simple Apps

Markdown Previewer

Write Markdown, see HTML. Instantly.

Markdown Editor and Preview

Markdown Editor

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Markdown Preview

Actions

Tips & Features

  • Uses GitHub Flavored Markdown (GFM).
  • Code blocks are automatically syntax highlighted. Specify the language after the backticks (e.g., ```javascript).
  • Upload `.md`, `.markdown`, or `.txt` files containing Markdown.
  • The preview updates instantly as you type.
  • Use the Print/Save PDF button to download your rendered Markdown as a PDF.
  • Content is saved automatically to your browser's local storage.
  • All rendering happens in your browser for complete privacy.

Frequently Asked Questions

What is Markdown?

Markdown is a lightweight markup language with plain-text formatting syntax. It's designed so that it can be converted to HTML and many other formats using a tool. It's often used for writing README files, documentation, messages in online forums, and creating rich text using a plain text editor.

What syntax highlighting themes are available?

This previewer currently uses the 'GitHub Dark' theme from highlight.js for code blocks. Other themes might be added in the future.

Why doesn't the preview look exactly like GitHub/GitLab/etc.?

While this tool uses GitHub Flavored Markdown (GFM) via the `marked` library, the final appearance (CSS styling) is specific to this website. Different platforms apply their own stylesheets to the generated HTML, resulting in visual differences. The core structure and rendering should be consistent with GFM standards.

Is my data secure?

Yes. All Markdown processing and HTML rendering happen entirely within your web browser. Your text is never sent to any server, ensuring your data remains private. Your content is saved to your browser's local storage only.