Preview & Format Markdown Online
Writing Markdown in a plain text editor means you have to mentally simulate how the rendered output will look — whether headings are the right level, whether code blocks have the right language hint for syntax highlighting, and whether your table renders correctly. devtoolkit.sh's Markdown Previewer gives you a side-by-side view: type or paste Markdown on the left and see the rendered HTML output on the right, updating in real time with every keystroke. The Markdown to HTML converter is useful when you need the actual HTML output — for embedding in a CMS, feeding into a static site generator, or sending as an HTML email — producing clean semantic HTML from your Markdown source. The Markdown Formatter cleans up inconsistent source formatting: normalizing heading spacing, fixing list indentation, and ensuring consistent blank lines around blocks, which helps keep Markdown source readable in version-controlled documentation repositories.
Live Markdown editor with side-by-side HTML preview.
Convert Markdown text to clean HTML markup.
Normalize and clean up Markdown text for consistent formatting.
FAQ
- What Markdown dialect does the previewer support?
- The previewer supports GitHub Flavored Markdown (GFM), which includes standard CommonMark plus extensions: tables, task lists, strikethrough, and fenced code blocks with language hints.
- How do I get the HTML from my Markdown?
- Use the Markdown to HTML converter. Paste your Markdown source and it produces the rendered HTML that you can copy and embed in any context that accepts HTML markup.
- Does the formatter change the meaning of my Markdown?
- No. The Markdown Formatter only adjusts whitespace, blank lines, and indentation — it does not alter heading levels, list content, or link URLs. The rendered output remains identical.