Mergely is a web-based development software and applications that allows users to compare, edit, and merge text and code files. It is designed to help developers work together on a project by allowing them to view, compare, and merge changes made by each other. It supports syntax highlighting for more than 50 languages, and features a powerful editor with a wide range of features such as line numbers, search and replace, text wrapping, and line highlighting. It also includes a side-by-side comparison view which allows users to quickly see the differences between two documents. Mergely is available both as a web application and as an open source library, which can be integrated into existing development projects.
Discontinued The official website is no longer accessible, but has been archived in Archive.org: https://web.archive.org/web/20150826022017/http://www.code-tools.com/comparetwo.htm
Discontinued The program is no longer updated, but the latest version, 4.2, released in November 2010, can still be purchased from the official website and reportedly still works.