VLC for iPhone has been released back onto the App store and has some nice new features, one of which is a small webserver you can use to send files directly to your iPhone through a web browser.

Note: The computer and iPhone must be connected to the same network in order for this to work.

via How-To Geek http://www.howtogeek.com/169251/how-to-add-files-to-vlc-on-your-iphone-without-itunes/