New in: 5.1.20 Saves the current wiki as a wiki folder, including tiddlers, plugins and configuration:

--savewikifolder <wikifolderpath> [<filter>]

• The target wiki folder must be empty or non-existent
• The filter specifies which tiddlers should be included. It is optional, defaulting to [all[tiddlers]]
• Plugins from the official plugin library are replaced with references to those plugins in the tiddlywiki.info file
• Custom plugins are unpacked into their own folder

A common usage is to convert a TiddlyWiki HTML file into a wiki folder:

tiddlywiki --load ./mywiki.html --savewikifolder ./mywikifolder