Widgets provide rich functionality within WikiText. They have the same syntax as HTML elements, but the tag name always starts with $. For example:

<$button message="tm-navigate" to="HelloThere">Open ~HelloThere</$button>

Note that widgets inherit all the features of HTML in WikiText:

• Widget attributes can be specified as:
  • Unquoted strings (that cannot contain spaces)
  • Strings quoted with single or double quotes
  • Strings quoted with triple-double quotes
  • Macro invocations (eg attr=<<myMacro>>)
  • Transclusions (eg, attr={{MyTiddler!!field}})
  • Filtered transclusions (eg, attr={{{ [filter[op]] }}})
  • New in v5.3.0 Substituted Attribute Values
• The content of a widget is parsed in inline mode unless the opening tag is followed by two linebreaks, which forces block mode
  • inline mode means that block mode parse rules like headings, tables and lists are not recognised

See HTML in WikiText for more details.

The available widgets include:

• action-confirm
• action-createtiddler
• action-deletefield
• action-deletetiddler
• action-listops
• action-log
• action-navigate
• action-popup
• action-sendmessage
• action-setfield
• action-setmultiplefields
• ActionWidget Execution Modes
• ActionWidgets
• browse
• button
• checkbox
• codeblock
• count
• data
• diff-text
• draggable
• droppable
• dropzone
• edit-bitmap
• edit-text
• edit
• encrypt
• entity
• error
• EventCatcherWidget
• fieldmangler
• fields
• fill
• genesis
• image
• importvariables
• jsontiddler
• keyboard
• let
• linkcatcher
• link
• list
• LogWidget
• macrocall
• MessageCatcherWidget
• MessageHandlerWidgets
• navigator
• parameters
• password
• vars
• radio
• range
• reveal
• scrollable
• select
• setmultiplevariables
• setvariable
• set
• slot
• testcase
• text
• tiddler
• transclude
• TriggeringWidgets
• vars
• view
• wikify