You can download an installable HTML tarball from here.
You can download a flat-text version, with headwords and references bracketed by colons, from here. Yes, the filling/justification is badly done, with lots of rivers (makeinfo is less good at this than the Emacs Lisp code used in older versions). No, we don't care; we're trying to phase out this format.
You can also download a copy of the Jargon File masters and the production tools used to generate HTML and TeX versions.
Unfortunately, the Jargon File is far too big to email. Requests that we mail it will be ignored. Also note that the Info version has been phased out; it's an HTML world now.
In the future we hope to offer an SGML/XML version suitable for serious database work.