Marked 2.5.27 Excellent Markdown preview tool

Markdown is a lightweight markup language founded by John Gruber. It allows people to "write documents in plain text format that is easy to read and write, and then convert them into valid XHTML (or HTML) documents". This language absorbs many of the features of plain text markup that are already present in emails.

The goal of Markdown is to be "easy to read and write".

Readability, in any case, is paramount.

A document written in Markdown format should be published directly in plain text and not look like it is made up of many tags or formatting directives.

Markdown syntax is influenced by a number of existing text-to-HTML formats, including Setext, atx, Textile, reStructuredText, Grutatext, and EtText, and the biggest inspiration is actually the format of plain-text emails.

Markdown's syntax is straightforward, easy to learn, and more powerful than plain text, so many people use it for blogging.

The world's most popular blogging platform WordPress and large CMS such as joomla and drupal all support Markdown very well, and Github also supports markdown, and has also made a lot of improvements in personalized syntax.