How to convert Markdown to HTML
Type or paste Markdown into the editor on the left and the rendered result appears on the right as you type. Use the output selector to switch between a live preview — the formatted document the way a reader would see it — and the HTML source, the actual markup you can copy into a web page, email template or CMS. Copy the HTML with one click or download it as a complete .html file. Everything runs in your browser; nothing is uploaded.
What Markdown is for
Markdown is the plain-text writing format that powers README files, GitHub issues, documentation sites, static blogs, chat apps and note-taking tools. Its appeal is that the source stays readable: a # makes a heading, asterisks make bold and italic, and a dash starts a list, all without leaving the keyboard or wrestling with a rich-text editor. But the web speaks HTML, so sooner or later you need to turn that Markdown into markup — to paste a formatted answer into a CMS that does not accept Markdown, to embed a rendered note in a page, or simply to check that your README will look right before you commit it.
That conversion is exactly what this tool does, and it does it the moment you type. There is no upload step, no round-trip to a server, and no waiting: the preview is instant because the parser runs in your own tab. It is the fastest way to sanity-check formatting, and because the output is deterministic, the same Markdown always produces the same HTML.
Supported Markdown syntax
The renderer uses GitHub-flavored Markdown, the dialect most people already know from writing on GitHub. That includes headings at every level, ordered and unordered lists (including nested ones), tables, fenced code blocks with language labels, inline code, blockquotes, links and images, horizontal rules, and the usual bold, italic and combined emphasis. Hard line breaks inside a paragraph are honoured, so text wraps the way you wrote it. The preview is styled to resemble a clean documentation page so you can judge the result at a glance, while the HTML source gives you semantic, framework-free markup you can drop anywhere.
Sanitized, safe HTML
Converting Markdown to HTML carries a quiet risk: Markdown allows raw HTML, so a document could smuggle in a <script> tag, an onerror attribute or a javascript: link. A naive converter would pass that straight through, and pasting the result into a page would execute it. This tool closes that hole by running every byte of generated HTML through DOMPurify, a well-audited sanitizer, before it is shown in the preview or handed to you. Scripts, event-handler attributes and other dangerous constructs are stripped, leaving clean, embeddable markup. You get the convenience of raw-HTML support in Markdown without inheriting its security problems.
Why a local Markdown renderer matters
The Markdown people convert is often personal or confidential: meeting notes, unpublished blog drafts, internal documentation, a private README, or release notes that are still under embargo. Pasting that into an online converter sends it to a server you do not control, where it may be logged or cached. This tool removes the risk entirely — the parser and sanitizer are bundled JavaScript libraries that run inside your own browser tab, with no network request, no logging and no account. Close the tab and everything you wrote is gone.
That is the gitime.dev approach across the board: deterministic, dependency-light developer tools that keep your data on your machine. Rendering a note never needs to leave your device to happen.
- Live preview and copy-ready, sanitized HTML source.
- GitHub-flavored Markdown: tables, code blocks, lists and more.
- XSS-safe output via DOMPurify — scripts and handlers stripped.
- Download a complete standalone
.htmlfile. - Everything stays on your device — no upload, no logging.
Frequently asked questions
- Is my Markdown uploaded anywhere?
- No. Rendering runs in your browser with bundled copies of marked and DOMPurify. Nothing is transmitted.
- Is the generated HTML safe to use?
- Yes. The HTML is sanitized with DOMPurify, which removes scripts and event handlers before preview or copy.
- Which Markdown flavour is supported?
- GitHub-flavored Markdown — headings, lists, tables, fenced code, blockquotes, links, images and emphasis.
- Can I get the raw HTML, not just a preview?
- Yes. Switch the output to HTML source to view, copy or download the sanitized markup.