Deepdwn is an offline-only, feature-rich Markdown editor for Windows, Mac, and Linux.

Deepdwn application window with panels for filters, file list, document outline and editor.

Deepdwn supports organizing documents by both tags and categories stored in your document’s YAML front matter, and supports backlinks to connect documents together.

Deepdwn has a number of editing features, like document outline, distraction-free mode, table auto-formatting and editing, Vim and Emacs keybindings, automatic list continuation, persistent section folding, image drag-and-drop and in-editor image preview, per-file and global word count history, and special effects for writing streaks.

Deepdwn also supports some additional block elements:

  • Mermaid diagrams
  • AsciiMath, Katex, and mhchem for math and chemistry rendering
  • Sheet music, guitar tabs, and songbooks

Deepdwn Markdown Support

Deepdwn provides support for the following Markdown elements.

Element Support Notes
Headings Yes
Paragraphs Yes
Line Breaks Yes
Bold Yes
Italic Yes
Blockquotes Yes
Ordered Lists Yes
Unordered Lists Yes
Code Yes
Horizontal Rules Yes
Links Yes
Images Yes
Tables Yes
Fenced Code Blocks Yes
Syntax Highlighting Yes
Footnotes Yes
Heading IDs Partial Heading IDs are automatically generated and link to headings via autocomplete.
Definition Lists Yes
Strikethrough Yes
Task Lists Yes
Emoji (copy and paste) Yes
Emoji (shortcodes) No
Highlight Yes
Subscript Yes
Superscript Yes
Automatic URL Linking Yes
Disabling Automatic URL Linking Yes

Support for Additional Syntax Elements

As an added bonus, Deepdwn provides support for several obscure elements.

Element Markdown Rendered Output
Abbreviation *[HTML]: Hyper Text Markup Language
The HTML specification is maintained by the W3C.
The HTML specification is maintained by the W3C.
Center ->This text has been centered<-
This text has been centered