Markdown to HTML
Convert Markdown into clean, standards-compliant HTML with live preview, syntax highlighting, GFM extensions, and export options — all local to your browser.
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What is Markdown?
Markdown is a plain-text formatting syntax whose guiding principle is readability: the raw source should look like a sensible document even unrendered. A heading is a line starting with #, emphasis is wrapped in asterisks, a link is text in brackets followed by a URL in parentheses. It takes minutes to learn and is now the writing format of GitHub, most static site generators, and a great deal of technical documentation.
Because it is plain text, it diffs cleanly in version control and never carries hidden formatting. Rendering it means parsing that syntax into semantic HTML: headings become heading elements, list items become list markup, fenced blocks become preformatted code. The widely implemented CommonMark specification pinned down the edge cases the original description left ambiguous, though extensions such as tables and task lists still vary between renderers.
Why we built this tool
You need HTML output when the destination does not speak Markdown: pasting an article into a CMS, building an email, dropping formatted content into a web page, or previewing exactly what a renderer will produce.
Unpublished drafts, internal notes, and client documentation are the usual inputs, and none of them need to be uploaded for a text transformation. Our converter parses and renders in the browser using JavaScript, so the document stays in the tab and no request is made. There is no length limit, no sign-up, and no server-side copy — and it keeps working with the network off, which is useful when you are writing on the move.
Tips and common mistakes
- Extensions such as tables, footnotes, and task lists vary between renderers — verify them in the final destination.
- Indent code inside list items consistently, or the fence will break out of the list.
- A blank line is required before a list or heading in strict CommonMark; without it the line stays a paragraph.
- Sanitise the HTML if the Markdown came from an untrusted source, since embedded HTML passes straight through.
Open Markdown to HTML with a link
Markdown to HTML can be handed its input by the link that opens it, so the page arrives with the work already done. This is meant for assistants and scripts: if a chatbot, an editor extension, or a command-line agent already holds your content, it can build a link instead of asking you to copy and paste into a box.
The payload rides in the fragment — the part of a URL after the #. Browsers never send the fragment to a server, so anything handed over this way stays on your device exactly as a dropped file would. A link that uses the query string instead is rewritten into the fragment by the page before any analytics or ad script can read the address.
Prefix any field with gz — #gztext= — to pass it as gzip-compressed base64url, which fits roughly five to ten times more into the same link. Links stay reliable up to about 8,000 characters; past that, chat apps and address bars start truncating them, and the page says so rather than loading half a document.
One exception to the privacy rule: ?url= tells the page to download the input from an address. That request goes from your browser straight to that server — not through ours — but it does leave your device, and it only works if the server allows cross-origin requests.
With My Gadgets installed as an app, a .md file opened from your desktop lands straight in this tool. The file is read locally, exactly like a drop.
#text=— the text to work on
Example: https://mygadgets.ink/tools/markdown-to-html/#text=...
Quick start: using Markdown to HTML
- Paste your Markdown into the input area above.
- Run the conversion to produce HTML.
- Check the rendered preview, paying attention to tables and code fences.
- Copy the HTML into your CMS, template, or email.
- Note that renderers differ on extensions, so verify anything beyond core Markdown in its final destination.
The reverse is HTML to Markdown. Turn a finished document into a shareable file with HTML to PDF.