Generally, “open source” refers to a computer program in which the source code is available to the general public for use and/or modification from its original design. Open-source code is typically a collaborative effort where programmers improve upon the source code and share the changes within the community so that other members can help improve it further. Open source software is free. Some organizations have capitalized off of providing support and modification services for open source software such as RedHat, Inc.
GanttProject is open source Java based, project management software that runs under the Windows,Linux and Mac OS X operating systems. It features most basic project management functions like a Gantt chart for project scheduling of tasks, and doing resource management using resource load charts. It does not have advanced features like cost accounting, message and document control. It has a number of reporting options (MS Project, HTML, PDF, spreadsheets).
Cyberduck is an open source client for FTP and SFTP, and is available for Mac OS X and Windows. It supports secure transfers as well as directory synchronization. The user interacts with the user interface, including file transfer by drag and drop and notifications via Growl. It is also able to open some files in external text editors. Cyberduck includes a bookmark manager and supports Apple’s Keychain and Bonjour networking.
FileZilla is free, cross-platform FTP application software, consisting of FileZilla Client and FileZilla Server. It is available for Windows, Linux, and Mac OS X. It features an easy to use two-sided interface, one side being the local file system and the other being the server. Users can drag and drop files between the two. Filezilla can also save profiles for connections you frequently use.
It supports FTP, SFTP, and FTPS (FTP overSSL/TLS). Support for SFTP (SSH File Transfer Protocol) is not implemented in FileZilla Server.