EiskaltDC++

EiskaltDC++ is a free cross-platform Direct Connect file sharing client with interfaces based on Qt and GTK+.

Features:

• Graphical interfaces based on Qt and GTK+, a daemon and a console interface to it.
• Multithreaded download (download pieces of the same file from multiple sources at once).
• Search with a possibility to group results.
• DHT support (allows file sharing and searching by TTH without using any hubs).
• Blacklist for search results.
• UPnP support.
• Support for binding to a network interface/address.
• Ability to use a side dock with a list of widgets, a multiline tab bar or a single line tab bar.
• PFSR (partial file sharing) support (users can download from you parts of the file that you have not downloaded completely, similarly you can download from other users partially downloaded files).
• Downloaded/shared lists.
• Possibility to auto-update external IP via DynDNS.
• Public/selected hubs (lists of Internet hubs, encoding used, connection type, possibility to introduce yourself to other clients, external IP, possibility to disable chat when connecting to a hub, possibility to set different search intervals for hubs (default setting: 60 sec).
• Favorite users (automatically give the slot, description, time of last visit).
• Multilingual interface.
• IP-filter.
• Anti-spam.
• Search spy.
• Logging.
• Filtering in user lists, search results, file lists, and public hubs.
• Search by file list.
• Ability to use Qt regular expressions in the user list filter (use ## in filter).
• Full chat (nickname coloring, parsing magnets, links, emoticons, search in chat, chat commands, BBCode support, switching on/off/clearing chat, Shift+Enter to move input line in chat, spell checking (using Aspell), ability to show IP-addresses and countries of users in chat (depends on the hub settings: information about them is usually available only for operators), separator (horizontal line) for unread messages in chat, possibility to highlight keywords in chat).
• User commands.
• Manager of download/download speed limitation.
• Learning how to highlight duplicates in a balloon.
• Limitation of upload/download by a balloon size (can be set via the context menu for a chosen directory in the file list).
• Text and sound notifications.
• Hashing settings (hashing speed limitation, pausing, using mask for specifying the files and directories which should not be hashed, setting up the period of balloon's automatic update).
• Support for custom QtScript extensions.
• Use of system icons (disabled by default).
• Ability to upload files to destination directory, without using temporary directory.
• Separate customization of fonts for application, user list, chat, private messages.
• Possibility to process magnet-links and hub-links sent to the client from different browsers.
• Drag-and-drop files in the message input field. If a file is in the balloon, a magnet-link is substituted for it.
• Lua scripts support.
• Support for case-sensitive file list.
• Hide menu (Ctrl+M) with an extra button on the toolbar.
• Indicators of free space and hashing progress in status bar.
• ADL search (with Perl-style regular expressions support via PCRE).
• Absence detection interval (checking user activity).
• Keyboard shortcut manager.
• Qt Declarative UI support (works only in Qt >= 4.7.0).
• Smileys bar can be used instead of the smileys selection window.
• A dialog for calculating the TTH of an arbitrary file.
• IDNA support - national domain name resolving.
• Possibility to connect to the hubs by coded URL
• Ability to view the queue of users waiting for a slot.
• Daemon and console interface can communicate via XML-RPC and/or JSON-RPC.