netfdiff是一个免费的，开源的，做一个网站做简单的跨平台的软件。

NetFdiff is free, open source software for a doing simple housekeeping of a web site. It is available for Mac OS X, Microsoft Windows, GNU/Linux, and other operating systems. NetFdiff will help for the following tasks: * Comparing directory structures between the local disk and the remote web site. * Uploading and Downloading files * Uploading recently modified files NetFdiff has been tested with directory structures containing more than 5000 files. Requirements To use NetFdiff, you need: * Python language installed on your local computer (version 2.4 or later) * PHP scripting enabled on the web server * FTP enabled for transfering files to/from the web server Learn more at http://fhoerni.free.fr/netfdiff/