Wikipedia:ReFill

reFill (formerly Reflinks) is a tool that expands bare URL references semi-automatically, hosted on Toolforge at toolforge:refill/ng. It adds information (page title, work/website, author and publication date, if metadata is included) to bare URL references, and does additional fixes as well (e.g. combining duplicated references). The tool is written in Python and licensed under Simplified BSD License. The tool is an open-source replacement of Dispenser's Reflinks. The source code is available on GitHub. The templates created automatically by the tool need to be reviewed to ensure that they are accurate, as they are often not.

<ref>http://example.com</ref>
<ref>{{cite web|url=http://example.com |title=Example Domain|publisher=}}</ref>

reFill converts bare references (red) into more complete ones (green)