Markdown Converter
Markdown ⇄ HTML both ways, plus real PDF, Word, and plain text export — most tools only do one direction.
Also known as: Markdown to HTML converter, HTML to Markdown converter, MD to PDF converter, Markdown to Word converter
How it works
- 1Choose Markdown → HTML or HTML → Markdown, and paste your content (or click Try a sample).
- 2For Markdown input, toggle the live preview to see the rendered result.
- 3Copy or download the current text conversion, or use the Export section below.
- 4Click HTML, PDF, Word, or Text in the Export section to download your Markdown as a real file in that format.
Why use Markdown Converter
Exports real PDF and Word files
Not just text-to-text — Markdown becomes a genuine paginated PDF or an editable .docx with real headings, lists, and formatting.
Genuine two-way text conversion
HTML → Markdown is implemented properly using the browser's real HTML parser, not just Markdown → HTML like most free tools.
Four export formats, one Markdown source
HTML, PDF, Word (.docx), and plain text all generate from the same Markdown, so you only write it once.
Covers real-world Markdown syntax
Headings, bold/italic, code blocks with language tags, links, images, lists, blockquotes, and tables are all supported everywhere they export to.
Safe sandboxed preview
The live HTML preview renders inside a fully sandboxed iframe with script execution disabled entirely.
Nothing transmitted
Every direction and every export format runs entirely in your browser — your content is never uploaded.
Who uses Markdown Converter
Turning an AI chat response into a document
Copy Markdown output from an AI assistant and export it straight to PDF or Word for sharing, without reformatting by hand.
Publishing Markdown notes as a web page
Convert Markdown documentation or notes into HTML ready to paste into a CMS or static site.
Sending a Markdown README to someone without a Markdown viewer
Export a README or project doc to PDF or Word so a non-technical reader can open it directly.
Turning a copied web snippet into Markdown
Paste HTML copied from a web page and get clean Markdown source suitable for a README or wiki.
Archiving an AI prompt-and-response pair
Export a Markdown-formatted conversation or prompt template as a plain text or PDF record.
Migrating content between platforms
Move content between a Markdown-based wiki and an HTML-based CMS in either direction, or out to a standalone file.
About Markdown Converter
Most "Markdown converter" tools online only really do one direction: Markdown to HTML, which is the easier of the two since Markdown's syntax is small and well-defined. Going the other way — HTML back to Markdown — requires actually parsing arbitrary HTML structure and deciding how to represent it in Markdown, which is why far fewer tools attempt it, and even fewer do it cleanly. This tool does both, using the browser's native DOMParser to properly parse HTML (rather than approximating it with regular expressions) before converting it back to Markdown.
Beyond the two text directions, this tool also exports your Markdown as real files in four formats. PDF and Word export reuse the same from-scratch document-layout engine and DOCX writer built for this site's Word-to-PDF converter: headings, bold/italic text, inline code, bullet and numbered lists, blockquotes, hyperlinks, and tables are all preserved as genuine structured formatting — not a screenshot or a plain-text dump. The Word file is a real .docx (with proper heading styles and list numbering, verified by round-tripping it back through this site's own DOCX parser) and the PDF is genuine vector text laid out page by page, not a rasterized image.
The Markdown-to-HTML direction covers the syntax people actually use day to day: headings, bold and italic text, inline code, fenced code blocks with language tags, links, images, ordered and unordered lists, blockquotes, horizontal rules, and GitHub-flavored pipe tables. All text content is HTML-escaped before any formatting is applied, so a literal `<script>` or `<div>` typed into your Markdown renders as visible text in the output, not as executable markup. The rendered HTML preview runs inside a fully sandboxed iframe with no script execution permitted at all.
Everything — both text-conversion directions, the preview render, and all four file exports — happens entirely in your browser. No content you paste in is ever transmitted anywhere, which matters as much for a quick personal note as it does for a confidential internal document or an AI prompt/output you're archiving.
Markdown Converter vs. other options
How Open Tools Library compares to desktop software and other online tools.
| Feature | Open Tools Library | Desktop software | Other online tools |
|---|---|---|---|
| Price | Free, unlimited | Often paid editors | Often free, one direction only |
| Content privacy | Never leaves your device | Stays local | Often uploaded to a server |
| Real PDF/Word export | Genuine paginated files, not screenshots | Varies by app | Rarely offered |
| HTML → Markdown support | Full support, real HTML parser | Varies | Rarely offered |
| Preview safety | Fully sandboxed, no script execution | N/A | Varies, often unsandboxed |
| Installation | None | Required | None |
Pro tips
- GitHub-flavored pipe tables need a separator row (| --- | --- |) directly under the header row to be recognized.
- The Export section works on whichever Markdown is currently active — your input if you're in Markdown → HTML mode, or the converted result if you're in HTML → Markdown mode.
- PDF and Word export don't fetch image URLs (no network calls) — an image reference exports as a text note like [image: alt text] instead of the picture itself.
- The HTML → Markdown direction reads actual HTML structure via the browser's parser, so malformed or unusual HTML may convert imperfectly — well-formed HTML converts most reliably.
- Nested formatting (like italic text inside bold text) is supported, but very deeply nested or unusual combinations may not round-trip perfectly in every export format.
Technical specs
- Markdown syntax covered
- Headings, bold/italic, code, links, images, lists, blockquotes, tables, hr
- Export formats
- HTML (.html), PDF (.pdf), Word (.docx), Plain text (.txt)
- PDF/Word engine
- Same from-scratch document layout engine and DOCX writer as Word-to-PDF
- HTML parsing engine
- Native browser DOMParser
- Preview sandboxing
- iframe with all script execution disabled
- Processing location
- 100% local, in your browser
Privacy & security
Markdown notes, copied HTML, and AI-generated content often contain drafts, internal documentation, or unpublished material — conversion and export shouldn't require handing any of that to a server.
Every conversion direction and every file export — including the live preview — runs entirely in your browser.
No account, no email, no login — just content in, converted content or a downloaded file out.
The preview is sandboxed with all script execution disabled, so nothing you paste can run code.
Nothing is retained after you close the tab; there's no copy waiting on a remote server.
Frequently asked questions
Is my content uploaded anywhere?
No. Every conversion direction and every export format runs entirely in your browser — nothing is ever transmitted.
Can I export Markdown as an actual PDF or Word document?
Yes — the Export section produces a real paginated PDF and a real editable .docx file, both with genuine headings, lists, bold/italic text, and tables, not a plain-text dump or screenshot.
Does this really convert HTML back to Markdown, not just Markdown to HTML?
Yes — both directions are fully implemented, with HTML parsed using the browser's real DOMParser rather than approximated with regular expressions.
Is the live preview safe to use with content I don't fully trust?
Yes — the preview renders inside a sandboxed iframe with all script execution disabled, so nothing in the preview can run code regardless of the source content.
What Markdown syntax is supported?
Headings, bold, italic, inline code, fenced code blocks, links, images, ordered and unordered lists, blockquotes, horizontal rules, and GitHub-flavored tables — across every export format.
Can I convert a full HTML document, not just a snippet?
Yes — paste the full document and the body content will be walked and converted; head/meta content isn't represented in Markdown output, since Markdown has no equivalent.
Troubleshooting
My exported PDF or Word file is missing an image
Image URLs aren't fetched during export (no network calls are made) — an image reference exports as a text note like [image: alt text] instead of the picture.
My table didn't convert correctly
Pipe tables need a separator row directly under the header, like | --- | --- | — without it, the table is treated as a regular paragraph.
HTML → Markdown dropped some formatting
Only the tags this converter recognizes (headings, paragraphs, bold/italic, code, links, images, lists, blockquotes, tables, hr) are converted — unrecognized tags have their text content preserved but their specific formatting isn't represented in Markdown.
The Export buttons are missing
They appear once there's Markdown to export — either typed into the Markdown → HTML input, or produced as the result of an HTML → Markdown conversion.
The preview looks blank or inert
This is expected for content that relies on scripts or external resources — the preview is intentionally sandboxed and can't execute or load either.
Guides and articles about Markdown Converter
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