Azureus is a Java based BitTorrent client, with support for I2P and Tor anonymous communication protocols. It currently supports Windows, Mac OS X, Linux and Unix. Azureus was started at Sourceforge.net mostly to experiment with the Standard Widget Toolkit from Eclipse, in June 2003. It is possibly the most popular of all BitTorrent clients.

Azureus allows users to specify maximum upload and download speeds and is configurable like many other clients. Azureus also allows users to open some files that have been completed before the entire torrent from within the program. Additionally, Azureus can serve as its own tracker, allowing users to share their own files with others without uploading it to any site.

As of version 2307-B29, Azureus supports Protocol header encrypt, an anti-throttling method. Azureus’ functionality can be expanded via various plugins, one of the more popular being Country Locator.

Azureus is a Java based BitTorrent client, with support for I2P and Tor anonymous communication protocols. It currently supports Windows, Mac OS X, Linux and Unix. Azureus is also the Latin word for azure, a sky-blue colour

Azureus allows the user to download multiple files in a single graphical user interface (GUI). The program also features detailed statistics and a large number of user-configurable settings. While downloading a torrent, the user can view many different statistics including:

• Current download and upload speeds and estimated time remaining,
• The percentage of each file completed and information on the ‘pieces’ (small parts of the complete file) still needed including the piece number and availability,
• File names, sizes and levels of completion for specific files within the download directory (BitTorrent allows a user to create a torrent file for an entire directory). It is also possible to prevent certain files from downloading,
• Peer data including IP addresses (and country with the use of a plugin), the speeds at which you are downloading and uploading to/from them, the port they are running BitTorrent on, and the BitTorrent client they are using,
• The total and average ’swarm speeds’