If there is a SaverModule available that supports it, TiddlyWiki will automatically trigger a save of the current document on clicking {{$:/core/images/done-button}} ''tick'' or {{$:/core/images/delete-button}} ''delete'' when editing a tiddler.
Automatic saving can be enabled or disabled through the ''Settings'' tab of the [[control panel|$:/ControlPanel]]. Behind the scenes, it is controlled through the configuration tiddler [[$:/config/AutoSave]], which must have the value ''yes'' to enable automatic saving.