Markdown to Documents
Markdown to HTML Converter
Convert Markdown to clean HTML — as a ready-to-publish standalone page or a raw fragment for your CMS — with GitHub-flavored tables, task lists and highlighted code.
Your files never leave your device — conversion runs locally in your browser.
The rendered document appears here.
To convert Markdown to HTML, paste your text or drop a .md file and copy the result — clean, semantic HTML you can publish anywhere. Choose a complete standalone page with embedded styles, or a raw fragment of just the content markup for a CMS. It runs entirely in your browser, with nothing uploaded, and the output is sanitized.
What this tool can’t do
- Mermaid diagrams are written out as source code — the standalone page ships no JavaScript, so it cannot draw them.
- Math styling is pulled from a KaTeX stylesheet on a CDN, so equations need a network connection to lay out correctly.
Need diagrams as real graphics? Export to PDF, which renders Mermaid as vectors.
Clean, semantic HTML you can paste anywhere
Markdown and HTML describe the same structures — headings, lists, tables, links, emphasis and code — so the conversion is clean rather than lossy. Every Markdown emits semantic tags: an <h2> for a second-level heading, a <ul> for a bullet list, a real <table> for a GitHub-flavored table. There is no <div> soup or framework-specific classes to strip out afterwards, so the markup drops straight into a blog engine, a static-site generator, an email template or a documentation system.
Code blocks are syntax-highlighted at conversion time with static markup, which means the highlighted result looks right with no JavaScript library loaded on the destination page.
Standalone page or raw fragment — and always sanitized
Pick the shape that fits where the HTML is going. Standalone mode produces a complete, self-contained .html file with embedded styles that opens in any browser as a finished document. Fragment mode returns just the content markup, with no <html>, <head> or wrapper, ready to paste into a CMS field or a template that already supplies its own page chrome.
Either way the output is sanitized: script tags, inline event handlers and other active content are stripped, so Markdown from an untrusted source cannot smuggle JavaScript into your page. And because the whole conversion runs in your browser, the source text is never uploaded — useful when the content is an unpublished draft.
How to convert a Markdown file to HTML
Drop a .md file or paste Markdown text into the editor and the preview renders it instantly. Choose standalone or fragment output, then copy the HTML to your clipboard or download it as a .html file. Nothing is sent anywhere — the converter keeps working even if you go offline after the page loads, and there is no limit on how many files you run.
How it works
Add your Markdown
Drop a .md file or paste Markdown text into the editor — the preview renders it instantly.
Choose the output shape
Standalone page (self-contained file with styles) or raw fragment (just the content markup).
Copy or download
Copy the HTML to your clipboard for a CMS, or download a .html file ready to open or publish.
About the formats
Markdown — Markdown
Markdown is a plain-text format that marks structure with simple punctuation — # for headings, ** for bold, - for lists. It has become the native output format of the AI era: ChatGPT, Claude, Copilot and coding agents all write Markdown, GitHub renders it, and note apps like Obsidian store everything in it. A .md file is just text, which is why it opens in any editor but looks unformatted without a renderer like this one.
HTML — HyperText Markup Language
HTML is the markup language of the web: every page you read in a browser is HTML. It expresses the same structures as Markdown — headings, lists, tables, links, code — with more verbose tags, which is why the two convert into each other so cleanly. Converting HTML to Markdown strips the boilerplate and keeps the content; converting Markdown to HTML makes it publishable anywhere.
Frequently asked questions
Is this safe? Do my files get uploaded?
No upload happens — ever. Converting Markdown to HTML runs entirely inside your browser. Your documents never leave your device, nothing is stored on any server, and the tool keeps working if you go offline after the page loads. That's also why there are no file size limits, no queues and no sign-up.
Do I get a full HTML page or just a fragment?
Your choice. Standalone mode produces a complete, self-contained .html file with embedded styles — open it in any browser and it looks like a rendered document. Fragment mode outputs just the content markup (h1, p, table…) with no wrapper, ready to paste into a CMS, a blog engine or an email template.
Is GitHub-flavored Markdown supported?
Yes — tables, task lists, strikethrough, autolinks and fenced code blocks all convert. Code blocks are syntax-highlighted at conversion time with static markup, so the output needs no JavaScript libraries to look right.
Is the generated HTML safe to publish?
The converter sanitizes the output: script tags, event handlers and other active content are stripped, so a Markdown file from an untrusted source can't smuggle JavaScript into your page. What comes out is plain structural markup.
Is the generated HTML clean and semantic?
Yes — each Markdown element maps to the matching semantic tag: headings become <h1>–<h6>, bullet and numbered lists become <ul> and <ol>, and a table becomes a real <table>. There are no presentational <div> wrappers or framework classes, so the markup is easy to read, restyle with your own CSS, and hand-edit or drop into a templating system.
What is a Markdown file?
Markdown is a plain-text format that marks structure with simple punctuation — # for headings, ** for bold, - for lists. It has become the native output format of the AI era: ChatGPT, Claude, Copilot and coding agents all write Markdown, GitHub renders it, and note apps like Obsidian store everything in it. A .md file is just text, which is why it opens in any editor but looks unformatted without a renderer like this one.
What is an HTML file?
HTML is the markup language of the web: every page you read in a browser is HTML. It expresses the same structures as Markdown — headings, lists, tables, links, code — with more verbose tags, which is why the two convert into each other so cleanly. Converting HTML to Markdown strips the boilerplate and keeps the content; converting Markdown to HTML makes it publishable anywhere.
Is there a file size or quantity limit?
There is no hard limit. Server-based converters cap uploads because your files consume their bandwidth and CPU; here the work happens on your machine, so the only practical limit is your device's memory. Even book-length documents convert in seconds — text is light work for a modern browser.