Markdown to HTML Converter
Markdown to HTML Converter handles ATX headings, simple bullet lines, paragraphs, bold, emphasis, inline code, and inline http/https links. It escapes raw HTML first, so pasted tags remain text. This is deliberately not a CommonMark parser: nested lists, fenced code, block quotes, images, reference links, tables, and full delimiter rules are outside its implementation.
Runs locally — files stay on your deviceDoes this converter support all Markdown?
No. It supports a compact line-based subset and should not be used where full CommonMark compatibility is required.
Markdown dialect and parser coverage determine output
Markdown is plain text with block and inline structure. A conforming parser resolves interactions between constructs; this tool instead applies a small set of predictable line and inline patterns.
How it works
Each line becomes an h1–h6, li, paragraph, or blank output line. Text is HTML-escaped, then supported bold, emphasis, code, and absolute HTTP links are replaced with elements.
Key concepts
Raw HTML is escaped
This reduces direct tag injection but also means embedded HTML is not preserved.
List items are fragments
Generated li elements are not wrapped in ul containers.
When to use it
- Convert a short controlled Markdown snippet.
- Preview the exact supported subset.
- Create simple escaped HTML fragments.
When not to use it
- Do not expect nested or ordered list containers.
- Do not use it for untested complex Markdown documents.
- Do not assume the output is a complete HTML document.
Worked examples
Heading
- Input
## Setup- Expected output
<h2>Setup</h2>
ATX heading syntax is recognized.
Inline formatting
- Input
**Ready** and `code`- Expected output
A paragraph with strong and code elements
Supported inline forms are converted.
Unsupported fence
- Input
```js- Expected output
Ordinary paragraph text
Fenced code blocks are not parsed.
Common mistakes
Assuming CommonMark conformance
Many block and delimiter rules are absent. Correction: Use a maintained parser for general documents.
Expecting a full page
No html, head, or body wrapper is generated. Correction: Embed the fragment in a suitable document.
Expecting raw HTML preservation
Angle brackets are escaped. Correction: Use an HTML-aware workflow if tags must survive.
Best practices
- Test representative source constructs.
- Sanitize again according to the final rendering context.
- Use a standards-oriented library for production publishing.
Related operations and differences
HTML to Markdown Converter
Choose HTML to Markdown Converter when you need to convert common HTML elements into clean Markdown.; use Markdown to HTML Converter specifically for markdown html.
Document Link Extractor
Choose Document Link Extractor when you need to extract labeled links from Markdown or HTML.; use Markdown to HTML Converter specifically for markdown html.
CSV to Markdown Table
Choose CSV to Markdown Table when you need to turn comma-separated rows into a Markdown table.; use Markdown to HTML Converter specifically for markdown html.
Document Word Statistics
Choose Document Word Statistics when you need to measure words, characters, lines and reading time.; use Markdown to HTML Converter specifically for markdown html.
HTML to Plain Text
Choose HTML to Plain Text when you need to remove markup, scripts and styles from HTML.; use Markdown to HTML Converter specifically for markdown html.
Inline Links to Footnotes
Choose Inline Links to Footnotes when you need to convert parenthesized URLs into numbered footnotes.; use Markdown to HTML Converter specifically for markdown html.
Limitations and privacy
- Small line-based subset only.
- No nested structures, fenced code, ordered lists, images, tables, references, or raw HTML.
- List fragments lack container elements.
Document text is transformed locally in this browser.
Frequently asked questions
Is raw HTML executed?
No; it is escaped.
Are fenced code blocks supported?
No.
Are relative links converted?
Only inline http/https links match.
Is the result a full HTML page?
No.