... a very small selection (out of many thousands) of self-made gif animations ... all of them ...
... also exist as swf files, most of which provide functionality and/or interactivity ... but unfortunately ...
... the required (old/discontinued) flash-player for swf files is no longer supported by any browser ...
... so you will probably never see the swf versions ... all my animations, whether gif or swf files, were ...
... created with Macromedia Flash many years ago ... later it was renamed to "Adobe Flash" ...
... then Adobe killed Flash for good and "replaced" it with a couple of less comfortable own tools ...
... and now you need to combine them to get almost comparable results as before with Flash ...
... also, the majority of all Adobe products are pretty expensive...
... but the worst thing is that they can only be "rented" ...
... it probably is all about much more - even "endless" - regular profit for Adobe Inc. only ...
:-(