curl and libcurl is a tool for transferring files using URL syntax. It supports HTTP, HTTPS, FTP, FTPS, SCP, SFTP, TFTP, DICT, TELNET, LDAP, POP3, IMAP, SMTP, RTSP, RTMP, and FILE, as well as HTTP-post, HTTP-put, cookies, FTP upload, resumed transfers, passwords, port numbers, SSL certificates, Kerberos, and proxies. It is powered by libcurl, the client-side URL transfer library. There are bindings to libcurl for about 40 languages and environments.
gnu.hylafax implements the HylaFAX client network protocol in pure Java. With it, Java applications can access a HylaFAX server in various ways, such as queueing FAX jobs, checking server/job status, and retrieving FAX files. The gnu.hylafax distribution also includes gnu.inet.ftp, a pure Java implementation of FTP client protocol (RFC0959).
fget is a commandline tool for mirroring remote files via FTP. It is based upon the included FTP client library, whose API is designed to resemble the normal Unix API for accessing files and directories. This interface should make it very easy to integrate FTP support into other applications.
NiceSTEP Java Components is a set of Java Beans and standard dialogs that give your Java application the look and feel of N*XTstep, GNUstep, and WindowMaker. It includes useful sample applications: Slide Projector, an image viewer/organizer with integrated slideshow, NiceSTEP Editor, a simple text editor with N*XT style scrollbars, NiceSTEP FTP, a graphical FTP client, and NiceSTEP CD Burner, a front end to mkisofs and cdrecord. Components include a N*XT-style scrollbar, a listbox, checkboxes, radio buttons, a 3D line, a multi-line label with a 3D border, text editing components, a directory navigator, pulldown buttons, popup lists, and more.
DataReel is a free, cross-platform database and communications toolkit. It can be used to rapidly develop and deploy multi-threaded database and communications applications. The DataReel toolkit is composed of a modular C++ library designed to build cross-platform infrastructures for end-user applications, embedded systems, and reusable libraries. DataReel's unique modular design simplifies adaptation, allowing you to determine the level of complexity. DataReel makes Internet connectivity and database programming easy.
Medusa provides a framework for implementing asynchronous socket-based servers for TCP/IP, and on Unix, Unix domain sockets. The first release includes HTTP, FTP, and 'monitor' (remote python interpreter) servers. Medusa can simultaneously support several instances of either the same or different server types - for example you could start up two HTTP servers, an FTP server, and a monitor server. Then you could connect to the monitor server to control and manipulate medusa while it is running.
The aim of the PicoForge project (previously known as PicoLibre) is to provide a set of high level libre software applications that are well integrated in order to provide a collaborative "forge". It makes it easy to deploy a collaborative work platform for developing software or hosting other collaborative activities. Having started (as PicoLibre) in an educational context, PicoForge is now a quite generic platform, comparable (but sometimes less advanced) to other *-Forge software platforms. It groups several high-level applications like phpGroupware, Sympa, TWiki, Subversion, and CVS.
KindFTP is meant to be a complete implementation of the FTP protocol, as specified in RFC959. It provides a component that directly exposes the low-level protocol, and it supports the core protocol that is available on most Open Source FTP servers. It has untested support for ACCT, SMNT, REIN, TYPE, STRU, MODE, ALLO, and SITE command. It uses iContract to provide a full formal specification of all software, jUnit for all unit testing, and Ant as a build tool.