This can be an editor of choice for something like http://hackage.haskell.org/package/asciidiagram or http://ditaa.sourceforge.net/

Great project! I always wanted to write something like this for ASCII art (handwritten, not autogenerated). But I always ended up using a plain text editor for this (http://asciimation.de/).

Isn't there JavE for that (http://www.jave.de/)?

Cool!

Remember TheDraw? (And the many other more advanced DOS ansi editors that followed http://en.wikipedia.org/wiki/TheDraw

I wonder if anyone has taken the next step and done a more modern full ansi graphics editor. Sure, they're not as practical these days as ASCIIFlow, which has real uses, but it would be fun!

I've used this a few times for posting charts and diagrams on usenet groups where most readers are ascii-based and it's great.

BTW, many non-techies have older browsers, for which the old version is better suited: http://stable.ascii-flow.appspot.com/#Draw

Same in Emacs:

M-x artist-mode

Shift-MouseButton2, select Drawing → Rectangle

Yeah, I though of artist-mode immediately!

Check this out with M-x org-mode and DITAA...

http://orgmode.org/worg/org-contrib/babel/languages/ob-doc-d...

Also org-mode gives you kick-ass ASCII tables.

Very nice.

One tiny thing: I was unable to draw a (totally horizontal) arrow connecting one box to another box to the right. The arrow head merged with the left border of the target box, becoming a "+" instead of a ">".

Very nice. However Google Drive connection doesn't work for me - when I press the button nothing happns. (Win7, Chrome).

Those tools could use tooltips...