What is supported
Headings, bold, italic, strikethrough, inline and fenced code with a language label, links and images, ordered and unordered lists including nesting, task lists, blockquotes, horizontal rules, and tables with column alignment.
Why raw HTML is off by default
Markdown normally lets HTML through untouched. That is fine for text you wrote yourself and a bad idea for text you pasted: a <script> in the preview would run on this site, where other tools keep notes and a password vault in your browser’s storage. So tags are escaped unless you tick the box, and the box is worth leaving alone unless you know where the text came from.
Frequently asked questions
Is my document uploaded anywhere?
No. Rendering happens in your browser. Rendering happens in your browser, so an unpublished draft stays private.
Which flavour of Markdown is this?
Close to GitHub Flavored Markdown for the parts most people use — tables, task lists, strikethrough and fenced code are all supported.
Should I turn on raw HTML?
Only for text you wrote or trust. With it on, any markup in the document renders as markup, including anything that came along with a copy and paste.
Something wrong with this tool, or an idea for it? Tell us