Clarifying what you are asking. You want to place images in a folder in your hard disk and point to them from Tiddlywiki, so that images will be shown in Tiddlywiki without being actually embedded in the file? If that is the case, yes it is possible. See the following link.
https://tiddlywiki.com/#ExternalImages Feel free to ask things you can't figure out. Sincerely Riz https://ibnishak.github.io/Timimi/ -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/6d37f4b4-d7c1-4a2d-a05f-3aa73e3e5d0f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.

