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Tools/Markdown Previewer

Markdown Previewer

Write or paste Markdown on the left and see the rendered HTML preview update in real-time. Copy the generated HTML with one click.

All processing happens in your browser — nothing is sent to our servers

Markdown Previewer


Features


This previewer supports bold, italic, and strikethrough text.


You can write inline code or full code blocks:


function greet(name) {
  return "Hello, " + name;
}

Lists


  • First item

  • Second item

  • Third item

  1. Step one

  2. Step two

  3. Step three

Links & Images


Visit EncryptCodec


Placeholder image
Blockquotes are great for highlighting important notes.


That covers all the basics of Markdown!

How it works
Markdown to HTML Rendering
01Input

Raw Markdown text — a lightweight markup language created by John Gruber in 2004

→
02Sanitize

Raw HTML tags in the input are escaped to prevent XSS — <script> becomes visible text, not executable code

→
03Block parsing

Text split into block elements: headings (#), code blocks (```), blockquotes (>), lists (- or 1.), horizontal rules (---), and paragraphs

→
04Inline parsing

Within each block, inline elements are processed: **bold**, *italic*, `code`, [links](url), ![images](url), ~~strikethrough~~

→
05HTML output

Semantic HTML generated — ready to paste into any web page or copy for documentation

Spec: CommonMark Spec 0.31, GitHub Flavored Markdown (GFM)

Markdown was designed to be readable as plain text. The spec has evolved — CommonMark standardized the ambiguous parts of the original spec, and GFM added tables, task lists, and strikethrough.

Frequently Asked Questions