📝 Markdown to HTML Converter

📝 Markdown Input

Lines: {{ markdownLines }} | Characters: {{ markdownInput.length }}

⚙️ Options

Include conversion statistics Format HTML output Sanitize HTML for security

🌐 HTML Output

HTML Length: {{ htmlOutput.length }} characters

👁️ Live Preview

📊 Conversion Statistics

Input:

Length: {{ stats.markdown_length }} chars

Lines: {{ stats.markdown_lines }}

Output:

Length: {{ stats.html_length }} chars

HTML Tags: {{ stats.html_tags }}

Elements:

Headers: {{ stats.headers }}

Links: {{ stats.links }}

Images: {{ stats.images }}

Content:

Lists: {{ stats.lists }}

Code Blocks: {{ stats.code_blocks }}

⚠️

ℹ️ About Markdown to HTML Converter

Markdown to HTML Converter turns plain-text Markdown into HTML elements such as <h1>, <p>, <ul>, <a>, <code>, and basic <table> markup. Markdown is designed for readable source text that can be published as web content, documentation, README files, changelogs, knowledge-base articles, and CMS drafts.

CommonMark and GitHub-style syntax: Markdown started with John Gruber's original syntax description. Modern parsers often compare behavior against the CommonMark specification, while tables, strikethrough, autolinks, and other repository-friendly extensions are documented in the GitHub Flavored Markdown spec.

Headings from # through #####, paragraphs, blockquotes, and horizontal rules.
Bold, italic, strikethrough, inline code, and fenced code blocks with optional language labels.
Inline links, image syntax, unordered lists, ordered lists, and basic pipe tables.
Live preview, copyable HTML output, optional output formatting, and conversion statistics.

Example: ## Release notes becomes <h2>Release notes</h2>, **fixed** becomes <strong>fixed</strong>, and [docs](/guide) becomes <a href="/guide">docs</a>. The generated tags follow normal HTML Standard element syntax, so the output can be pasted into templates, static-site generators, CMS fields, or email build pipelines that accept HTML fragments.

Limitations and safety: Markdown dialects differ, so site-specific extensions such as footnotes, task lists, front matter, custom containers, math notation, and nested table edge cases may need a dedicated parser before production publishing. If the Markdown comes from users or another untrusted source, sanitize the final HTML in your application before rendering it; OWASP's XSS prevention guidance explains why converted HTML must still be treated as active web content.

API Usage Example:

POST /api/tools/web-dev/markdown-to-html
Content-Type: application/json

{
    "markdown": "# Hello World\n\nThis is **bold** and *italic* text.\n\n- List item 1\n- List item 2",
    "options": {
        "includeStats": true,
        "prettify": true,
        "sanitize": false
    }
}