Markdown to HTML
Split pane: write Markdown on the left, see rendered HTML on the right. Live updating.
How it works
Markdown is a lightweight markup language created by John Gruber that lets you write formatted content using plain text syntax. Headings start with #, bold text is wrapped in **, links use [text](url) syntax, and code blocks are fenced with triple backticks. This tool converts that Markdown syntax into valid HTML in real time.
The split-pane layout shows your Markdown source on the left and the rendered HTML preview on the right, updating live as you type. This is the same editing experience as dedicated Markdown editors like Typora or HackMD, but running entirely in your browser with no account, no cloud sync, and no data leaving your device.
The converter supports CommonMark plus common extensions: tables (GFM-style), task lists, strikethrough, fenced code blocks with language hints, and autolinked URLs. The rendered preview uses clean semantic HTML that you can copy and paste directly into a CMS, email template, or web page.
Click "Copy HTML" to get the raw HTML source code for the rendered output. This is useful when you need to embed formatted content in a system that accepts HTML but not Markdown — email newsletters, CMS rich text fields, or static site templates.
FAQ
What Markdown flavor does this support?
CommonMark with GitHub Flavored Markdown (GFM) extensions: tables, task lists, strikethrough, autolinks, and fenced code blocks. It does not support custom extensions like footnotes or math blocks.
Can I use this for GitHub README previews?
Yes. GitHub uses GFM, which this tool supports. The rendered output will closely match how your README appears on GitHub, with minor styling differences.
Does this sanitize the HTML output?
The converter generates clean semantic HTML. Raw HTML tags in the Markdown input are passed through as-is (per the CommonMark spec). If you are embedding the output in a page, sanitize it server-side to prevent XSS.
Can I convert HTML back to Markdown?
This tool is one-directional (Markdown to HTML). HTML-to-Markdown conversion is a separate and more complex process — it is on the Bytario roadmap.