When comparing MarkdownPad vs Mark Text, the Slant community recommends Mark Text for most people. In the question“What are the best open source Markdown editors for UNIX-like systems?” Mark Text is ranked 13th while MarkdownPad is ranked 36th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Allows customizing output
A custom CSS can be added to the rendered HTML to change the preview and output.
Pro Real-time HTML Preview
MarkdownPad is split in two panes. One pane is used for writing Markdown, the other shows the rendered HTML as it's written.
Pro Open Source
Pro WYSIWYG or TEXT visualisation
Pro Has RTL language support
Can be used with languages such as Hebrew and Arabic.
Pro Very light : 103 Mb only
Cons
Con Many features are disabled in the free version
Free version lacks features like auto-save, PDF export, Markdown tables among many others and can't be used commercially.
Con Abandoned project
Nothing from author since 03/15. Pro version preview pane crashes, no fix has been offered. See user forums.
Con Preview window crashes / does not update
Con Not lightweight
On Windows 10 the installed size was 259 Mb, no surprise as this is an Electron based app.
Con Not a WYSIWYG editor, no formated preview
There is only plain text editing.