Live, Split, and Source
mdfy gives you three ways to look at the same document.
Live (default)
WYSIWYG. You see the rendered output and type into it directly — bold is bold, headings are headings, the markdown source stays behind the scenes. Best for prose and most editing work.
Split
Two panes side-by-side: Source on the left, Live on the right. Edit either side; changes sync. Best for hand-written tables, math, or when you want to verify how a markdown construct renders.
Source
Pure markdown in a CodeMirror editor with full syntax highlighting and shortcuts. Best for bulk edits, find-and-replace, or pasting machine-generated markdown verbatim.
Why three
WYSIWYG markdown editors usually pick one — either you write in markdown and "preview," or you write in WYSIWYG and "export." mdfy refuses the trade-off: the source and the rendered tree are linked bidirectionally, and the toolbar pill lets you swap views without losing position.
Mode is per-session, not per-doc — set it once, every doc opens that way.