I was hoping I could find exactly this. Thanks.

The source[1] is also on GitHub too. As a non-c++ programmer, I found it pretty easy to follow along.

[1]: https://github.com/keepassx/keepassx

The dependencies for this seem more appealing than KeePass but unless my searching skills are not up to par there don't appear to be any browser autocompletion plugins.

I've found autotype to be more than enough personally: http://keepass.info/help/base/autotype.html

In fact, I usually just copy the password with Ctrl-C and the username with Ctrl-B. You can configure a secure clipboard erase after n seconds.

One thing I really wish had better support is ssh-based entry-level sync of databases[1]. Keepass has a plugin for it but I don't know the status for KeepassX 2 (currently in a non-stable release state). If I could point KeepassX at an SSH remote path and have it transparently sync at the entry level it'd be almost perfect.

[1]: http://keepass.info/help/v2/sync.html

I've used autotype before and it works fantastic, but you have to be super careful with it. It basically switches back to the last window you had open and immediately types your username and password in. It is very easy for this to type your credentials into the wrong window. When using it (I used it a lot for vmware sessions through an rpd connection), I would find myself clicking back and forth from the target window to keepass a couple times to ensure I was going to hit the right window.

I read that the browser autocompletion plugins from KeePass work with KeePassX, but I've never tested it.