Comparison of BitTorrent clients

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A BitTorrent client is a computer program that manages downloads and uploads using the BitTorrent protocol.

The first client, known as BitTorrent, was created by Bram Cohen, in October 2002.

Many subsequent clients have been at least partially based on it. Not all clients were originally built for BitTorrent, having added support for the protocol later on. There have been attempts to package malware as BitTorrent clients, probably due to the availability of many legitimate clients and users' willingness to try new ones.

The following tables compare general and technical information for a number of applications supporting the BitTorrent protocol. They are not all-inclusive nor necessarily up to date.

Contents

[edit] Applications

[edit] General

Note: Clients in purple are no longer in development.

BitTorrent client First public release date Latest stable FOSS Software license Cost (USD) Spyware, Adware, Malware-free [1]
ABC ? 3.1

 (2005-10-02; 3 years ago)

Yes Python Software Foundation License Free Yes
Acquisition ? 2.1 (v210)

 (2009-03-04; 3 months ago)

Partial ? $25 Yes
Anatomic P2P ? ? Yes GPL Free ?
Arctic Torrent ? 1.2.3

 (2004-9-4; 4 years ago)

Yes MIT License Free Yes
Aria2 ? 1.4.1
(2009-06-07; 28 days ago)
Yes GPL Free Yes
BitComet 2003 1.12

 (2009-05-18; 48 days ago)

No Proprietary Free Adware[2]
Bitflu ? 0.90

 (2009-05-01; 2 months ago)

Yes Artistic License Free ?
BitLet ? ? No Proprietary Free ?
BitLord ? 1.1

 (2005-05-08; 4 years ago)

No ? Free ?
BitThief ? 0.3

 (2009-04-14; 2 months ago)

No ? Free Spyware [3]
BitTornado ? 0.3.17

 (2006-10-19; 2 years ago)

Yes MIT License Free Yes
BitTorrent 5 / Mainline 2001 6.2 (Windows)

 (2009-07-01; 4 days ago)

Yes BitTorrent Open Source License Free ?
BitTorrent 6 2001 6.2 (Windows)

 (2009-07-01; 4 days ago)

No Proprietary Free Adware [4]
Bits on Wheels ? 1.0.6

 (2005-11-19; 3 years ago)

No ? Free Yes
BitTyrant 2007 1.1.1

 (2007-09-07; 21 months ago)

Yes GPL Free ?
Blog Torrent ? 0.92

 (2005-04-20; 4 years ago)

Yes GPL Free ?
BTG ? 0.9.9 Yes GPL Free ?
Burst! ? ? Yes MIT License Free Yes
CTorrent ? 1.3.4

 (2004-09-07; 4 years ago)

Yes GPL Free ?
Deluge 2006 1.1.9

 (2009-06-15; 20 days ago)

Yes GPL Free Yes
FlashGet ? 1.9.6

 (2007-09-25; 20 months ago)

No Proprietary Free Adware [5]
Free Download Manager 2004 3.0 build 848

 (2009-1-30; 5 months ago)

Yes GPL Free Yes
Freeloader ? ? Yes GPL Free ?
G3 Torrent ? 1.01

 (2005-09-02; 3 years ago)

Yes MIT License Free Yes
Gnome BitTorrent ? ? Yes Python Software Foundation License Free ?
Halite ? 0.3.1.1

 (2008-10-09; 8 months ago)

Yes Boost Software License Free Yes
KTorrent ? 3.2.2

 (2009-06-01; 34 days ago)

Yes GPL Free Yes
LimeWire 2000 5.1.2

 (2009-03-10; 3 months ago)

Yes GPL Free (pro:$35) Yes
Localhost ? ? Yes GPL Free Yes
Miro ? 2.0.4

 (2009-03-09; 3 months ago)

Yes GPL Free Yes [6]
MP3 Rocket 2005 5.0.3

 (2008-02-28; 15 months ago)

Yes GPL Free Adware[7]
MLDonkey 2001 3.0.0

 (2009-02-24; 4 months ago)

Yes GPL Free Yes
OneSwarm 2008 0.6.2

 (2009-07-01; 4 days ago)

Yes GPL Free Yes
Opera 1996 9.64

 (2009-03-02; 4 months ago)

No Proprietary Free Yes
QTorrent ? 0.9.5 Yes MIT License Free Yes
qBittorrent ? 1.3.3

 (2009-04-06; 2 months ago)

Yes GPL Free ?
rTorrent ? 0.8.4 - 0.12.4 (lib)

 (2008-11-19; 7 months ago)

Yes GPL Free Yes
Rufus ? 0.7.0

 (2005-11-30; 3 years ago)

Yes GPL Free Yes
Shareaza 2002 2.4.0.0

 (2008-10-01; 8 months ago)

Yes GPL Free Yes
SymTorrent ? 1.41
(2008-11-23; 7 months ago)
Yes GPL Free Yes
Tomato Torrent ? 1.5

 (2007-3-11; 2 years ago)

Yes BitTorrent open source License Free Yes
Torium 2008 0.4.2
(2009-04-18; 2 months ago)
Yes ISCL Free ?
Torrent Swapper ? 1.0

 (2006-8-9; 2 years ago)

Yes MIT License Free Yes
TorrentFlux ? 2.4 final

 (2008-6-18; 12 months ago)

Yes GPL Free Yes
TorrentVolve ? 1.4
(2007-01-05; 2 years ago)
Yes GPL Free Yes
Transmission 2005 1.72

 (2009-06-16; 19 days ago)

Yes GPL Free Yes
Tribler 2006 4.5.2

 (2008-11-28; 7 months ago)

Yes LGPL Free Yes
µTorrent 2005[8] 1.8.3 (build 15772)

 (2009-7-2; 3 days ago)

No[9] Proprietary Free Adware
Optional installion of Ask.com toolbar[10]
Vuze (formerly Azureus) 2003 4.2.0.2

 (2009-04-09; 2 months ago)

Partial Proprietary (platform)/
GPL (core engine)
Free (main)/
$10 (portable)
Adware
Optional installion of Vuze toolbar,
powered by Ask.com[11][12]
Wyzo ? 3.0.3 No Proprietary Free ?
ZipTorrent ? 1.3.7.3

 (2005-8-24; 3 years ago)

No ? ? Yes
BitTorrent client First public release date Latest stable FOSS Software license Cost (USD) Spyware, Adware, Malware-free [1].

[edit] Operating system support

Applications run with Wine under Linux and other operating systems are marked as No. Mostly these are noted, but there may be other applications running under emulation which are not marked.

BitTorrent client Linux/Unix Windows Mac OS X Other
ABC Obsolete Yes No No
Acquisition No No Yes No
Anatomic P2P Yes Yes Yes No
Arctic Torrent No Yes No No
Aria Yes Yes Yes No
BitComet No Yes No No
Bitflu Yes No Yes No
BitLet Yes Yes Yes No
BitLord No Yes No No
BitThief Yes Yes Yes No
BitTornado Yes Yes Yes No
BitTorrent 5 / Mainline Terminated (5.3) Terminated (5.2.2) Obsolete (4.27.2) No
BitTorrent 6 No Yes No No
Bits on Wheels No No Yes No
BitTyrant Yes Yes Yes No
Blog Torrent No Yes Yes No
BTG Yes No Yes No
Burst! No Yes No No
CTorrent Yes No No No
Deluge Yes Yes Source only[13] No
FlashGet No Yes No No
Free Download Manager No Yes No No
Freeloader Yes No No No
G3 Torrent No Yes No No
Gnome BitTorrent Yes No No No
Halite No Yes No No
KTorrent Yes Yes Yes FreeBSD
LimeWire Yes Yes Yes No
Localhost Yes Yes No No
Miro Yes Yes Yes No
MP3 Rocket No Yes No No
MLDonkey Yes Yes Yes No
OneSwarm Yes Yes Yes No
Opera Yes Yes Yes FreeBSD, Solaris
QTorrent Yes No No No
qBittorrent Yes No Yes No
rTorrent Yes No Yes FreeBSD, Solaris
Rufus Yes Yes No No
Shareaza No Yes No No
SymTorrent No No No Symbian OS
Tomato Torrent No No Yes No
Torium Yes Partial No No
Torrent Swapper Yes Yes Yes No
TorrentFlux Yes Yes Yes No
TorrentVolve Yes Yes Yes No
Transmission Yes No Yes FreeBSD, Solaris
Tribler Yes Yes Yes No
μTorrent No Yes Beta[14] No
Vuze (formerly Azureus) Yes Yes Yes No
Wyzo No Yes Yes No
ZipTorrent No Yes No No
BitTorrent client Linux/Unix Windows Mac OS X Other

[edit] Interface and programming

BitTorrent client GUI web CLI other Programming language Based on IPv6[15]
ABC Yes Yes No No Python BitTornado buggy[16]
Acquisition Yes No No No Objective-C and Cocoa Limewire ?
Anatomic P2P Yes No old No Python BitTornado No
Arctic Torrent Yes No No No C++ libtorrent (Rasterbar) No
Aria obsolete [17] No Partial Daemon C++ - ?
BitComet Yes Yes No No C++ ? No
Bitflu No Yes No Telnet Perl - Yes
BitLet No Yes No No Java and JavaScript - ?
BitLord Yes No No No C++ BitComet No
BitThief Yes No No No Java ? ?
BitTornado Yes No Partial No Python BitTorrent Yes
BitTorrent 5 / Mainline Yes No Partial No Python - No
BitTorrent 6 Yes Yes Partial No C++ µTorrent Yes
Bits on Wheels Yes No No No Objective-C and Cocoa - Yes
BitTyrant Yes Yes Partial Telnet, XML over HTTP remote control API Java and SWT Azureus Partial [18]
Blog Torrent Yes No No No ? ? ?
BTG Yes Yes Partial No C++ libtorrent (Rasterbar) Partial
Burst! Yes No No No Python ? ?
CTorrent No No Partial No C++ ? No
Deluge Yes Yes Partial Daemon Python and C++ libtorrent (Rasterbar) No [19]
FlashGet Yes No No No ? ? No
Free Download Manager Yes Yes Partial No C++ libtorrent (Rasterbar) ?
Freeloader Yes No No No Python ? ?
G3 Torrent Yes Yes No No Python BitTorrent ?
Gnome BitTorrent Yes No No No Python ? ?
Halite Yes No No No C++ libtorrent (Rasterbar) ?
KTorrent Yes Yes Partial No C++ - Yes
LimeWire Yes No No No Java - No
Localhost No Yes No No Java and SWT Azureus ?
Miro Yes No No No C++ libtorrent (Rasterbar) ?
MP3 Rocket Yes No No No Java - No
MLDonkey Network GUI Yes Partial Telnet Ocaml - No
OneSwarm Yes Yes ? ? Java Azureus ?
Opera Yes No No No C++ - Yes
QTorrent Qt (toolkit) No No No C++/PyQt BitTornado ?
qBittorrent Qt (toolkit) Yes No No C++ libtorrent (Rasterbar) Yes
rTorrent No No Partial SCGI C++ libtorrent (Rakshasa) No[20]
Rufus Yes Yes No No Python G3 Torrent No
Shareaza Yes Yes Partial No C++ - No
SymTorrent Yes No No No ? ? ?
Tomato Torrent Yes No No No Cocoa BitTorrent No
Torium gtkmm No No directory monitoring (ssh,sftp) C++ libtorrent (Rasterbar) Partial
Torrent Swapper Yes Yes No No Python BitTorrent buggy[16]
TorrentFlux No Yes No No PHP BitTornado Yes
TorrentVolve No Yes No No PHP Azureus Partial [21]
Transmission Yes Yes Partial Daemon C and Cocoa - Yes
Tribler Yes No Partial No Python ABC Yes
µTorrent Yes Yes No[22] No C++[23] - Yes[24]
Vuze (formerly Azureus) Yes Yes Partial Telnet, XML over HTTP remote control API Java and SWT - Partial[18]
ZipTorrent Yes No No No C++ libtorrent (Rasterbar) ?
BitTorrent client GUI web CLI other Programming language Based on IPv6[15]

[edit] Features I

BitTorrent client Super-seeding Tracker UPnP[25] NAT Port Mapping Protocol NAT traversal DHT[26] Peer exchange Encryption UDP tracker
ABC No Yes Yes ? No No No No ?
Acquisition No No No Yes No No ? No ?
Anatomic P2P Yes Separate download Yes ? ? ? ? No ?
Arctic Torrent No No No ? No No Yes No ?
Aria No Yes No No No Yes Yes Yes Yes
BitComet No Separate download Yes Yes Yes Yes Yes Yes Yes
Bitflu No No No No No No Yes No ?
BitLet No No Yes No No No No No ?
BitLord No No Yes ? Yes No Yes No Yes
BitThief ? ? ? ? ? ? ? ? ?
BitTornado Yes Yes[27] Yes ? No No No Yes ?
BitTorrent 5 / Mainline No Yes[27] Yes Yes No Yes Yes Yes ?
BitTorrent 6 Yes Yes Yes Yes No Yes Yes[28] Yes No
Bits on Wheels No No No No No No No No ?
BitTyrant Yes[citation needed] Yes Yes Yes Yes[29] Yes[30] Yes Yes ?
Blog Torrent ? Yes ? ? ? ? ? ? ?
BTG ? No Yes Yes ? Yes Yes Yes Yes
Burst! Yes No ? ? ? ? ? No ?
CTorrent ? ? ? ? ? No No No ?
Deluge No No Yes Yes Yes Yes Yes Yes Yes
FlashGet ? ? ? ? ? Yes ? Yes ?
Free Download Manager ? ? ? ? ? Yes ? ? ?
Freeloader ? No ? ? ? ? ? No ?
G3 Torrent No No No ? No No ? No ?
Gnome BitTorrent ? No No ? ? No No No ?
Halite No No Yes Yes No Yes No Yes No[31]
KTorrent No No Yes Yes Yes Yes Yes Yes Yes
LimeWire No No Yes No No Yes No No No
Localhost Yes Yes Yes ? Yes Yes [32] ? No ?
MLDonkey No Yes No ? No No ? No ?
OneSwarm ? ? ? ? ? ? ? ? ?
Opera No Yes[33] ? ? ? ? Yes[34] ? ?
QTorrent No No No ? No No No No ?
qBittorrent No No Yes ? No Yes Yes Yes Yes
rTorrent Yes No No No No Yes Yes Yes ?
Rufus No No ? ? No No ? No ?
Shareaza No No Yes Yes No Yes[35] Yes No No
Snark ? Yes ? ? ? ? ? ? ?
SymTorrent No No ? ? ? No No No ?
Tomato Torrent No Yes ? ? ? Yes ? No ?
Torium No No Yes ? ? Yes ? No ?
Torrent Swapper Yes Yes[27] Yes ? No No Yes No ?
TorrentFlux Yes No Yes ? No No No Yes ?
TorrentVolve Partial [21] No Partial [21] Partial [21] Partial [21] Partial [21] Partial [21] Partial [21] ?
Transmission No No Yes Yes Yes Yes Yes[36] Yes No
Tribler ? ? Yes Yes ? Yes Yes Yes ?
µTorrent Yes[37] Yes[38] Yes[39] Yes No Yes[40] Yes[28] Yes[41] No[42]
Vuze (formerly Azureus) Yes Yes Yes Yes Yes[43] Yes[30] Yes Yes Yes
ZipTorrent ? ? Yes ? No ? ? No ?
BitTorrent client Super-seeding Tracker UPnP[25] NAT Port Mapping Protocol NAT traversal DHT[26] Peer exchange Encryption UDP tracker

[edit] Features II

BitTorrent client Cache[44] Web seeding[45] Broadcatching (RSS) Prioritization Selective downloads SOCKS Remote control via web Engine Auto updates Notes
ABC ? Yes No Yes No ? Yes Separate download ?
Acquisition ? No No No No No No No ? 3 torrents max, infinity when registered
Anatomic P2P ? Yes ? ? ? ? ? ? ? Tracker exists as a separate download
Arctic Torrent ? No No No No No No No ?
Aria ? No No No Yes Yes No No ?
BitComet Yes No Beta Yes Yes Yes Yes Built-in Web browser Yes Tracker exists as a separate download
Bitflu Partial No No No Yes No Yes No No No built-in Cache-Disk cache but a Delayed commit
BitLet No No No No No No No No Yes
BitLord Yes No Yes Yes Yes Yes No Built-in Web browser Yes
BitThief ? ? ? ? ? ? ? ? ? Designed to abuse the BitTorrent protocol. Never uploads real data, only downloads
BitTornado Yes Yes No Yes Yes No No No via package management system
BitTorrent 5 / Mainline ? Yes No Yes Yes No No Yes Yes
BitTorrent 6 Yes Yes Yes Yes Yes Yes Yes Yes Yes
Bits on Wheels ? ? ? ? No ? No ? ?
BitTyrant Yes Yes [46] Plugin Yes Yes Yes Plugin[47] 3rd party plugins Yes Upload priority optimized according to a series of research papers.
Blog Torrent ? No No No No ? No No ?
BTG Yes Yes No Yes Yes Yes Yes No No
Burst! ? ? ? ? No ? ? ? ? 20 torrents max
CTorrent ? ? ? Yes No ? ? ? No
Deluge Yes Yes No[48][49] Yes Yes Yes Yes Yes Notification ,and update via package management system
FlashGet ? ? ? ? ? ? ? ? ?
Free Download Manager ? ? ? Yes Yes ? Yes ? Optional
Freeloader ? ? No ? ? ? No No ?
G3 Torrent ? No Yes Yes Yes No Yes No ?
Gnome BitTorrent ? No No ? No ? No No ?
Halite No No No Yes Yes No No No No Have a stand-alone version
KTorrent Yes Yes Yes Yes Yes Yes Yes Built-in Web browser via package management system
LimeWire Yes No No No No Yes No No Yes
Localhost Yes No Plugin Yes Yes Yes Plugin[47] Yes ? DHT are required by Localhost
MLDonkey Yes No 3rd party bash script Yes No No[50] Yes Built-into Web browser No
OneSwarm ? ? ? ? ? ? ? ?
Opera ? ? Yes No No No No Built-into Web browser Notification only
QTorrent ? ? ? ? ? ? ? ? ?
qBittorrent No Yes Yes Yes Yes ? No Yes[51] via package management system
rTorrent Partial No 3rd party utility [52] Yes Yes No Yes No No No built-in Cache-Disk cache but a Delayed sync
Rufus ? No Yes Yes Yes ? Yes No ?
Shareaza Yes Yes No Yes Beta[53] No Yes Yes Yes [54]
SymTorrent ? ? ? ? ? ? ? ? ?
Tomato Torrent ? ? ? ? ? ? ? ? ?
Torium Yes ? ? Yes ? ? ? Yes No
Torrent Swapper Yes Yes Yes Yes Yes No Yes Built-in Web browser Yes
TorrentFlux Yes Yes Yes Yes Yes No Yes Yes ?
TorrentVolve [21] No No Yes Yes No Yes No [21]
Transmission No Yes No Yes Yes Yes Yes No Yes
Tribler ? ? Yes Yes ? No ? No No
µTorrent Yes Yes[55] Yes[56] Yes[57] Yes Yes Yes Yes Yes
Vuze (formerly Azureus) Yes Yes [46] Yes Yes Yes Yes Plugin[47] Yes Yes
ZipTorrent ? ? Yes ? ? ? ? ? ?
BitTorrent client Cache[44] Web seeding[45] Broadcatching (RSS) Prioritization Selective downloads SOCKS Remote control via web Engine Auto updates Notes
  • ^  Opera is a feed aggregator that displays the feed like mails.

[edit] Libraries

General
BitTorrent Library First public release date Latest stable FOSS Software license Cost (USD) Spyware, Adware, Malware -free
BTSharp ? 2.0

 (2007-02-04; 2 years ago)

No Proprietary Subsription-based Yes[citation needed]
Libtorrent (Rakshasa) ? 0.12.2

 (2008-12-26; 6 months ago)

Yes GPL Free Yes
Libtorrent (Rasterbar) Sept. 2005 0.14.4

 (2009-06-01; 34 days ago)

Yes BSD Free Yes
MonoTorrent Sept. 2006 0.72

 (2009-04-05; 2 months ago)

Yes MIT/X11 Free Yes
BitTorrent Library First public release date Latest stable FOSS Software license Cost (USD) Spyware, Adware, Malware -free
OS support
BitTorrent Library Linux/Unix Windows Mac OS X
BTSharp No Yes No
Libtorrent (Rakshasa) Yes No Yes
Libtorrent (Rasterbar) Yes Yes Yes
MonoTorrent Yes Yes Yes
BitTorrent Library Linux/Unix Windows Mac OS X
Programming
BitTorrent Library API Programming language
BTSharp Yes C#
Libtorrent (Rakshasa) Yes C++
Libtorrent (Rasterbar) Yes C++
MonoTorrent Yes C#
BitTorrent Library API Programming language
Supported Features I
BitTorrent Library Super-seeding Tracker UPnP[25] NAT Port Mapping Protocol NAT traversal DHT[26] Peer exchange Encryption UDP tracker
BTSharp No Yes Yes No No No No No ?
Libtorrent (Rakshasa) Yes ? No ? ? Yes Yes Yes Yes
Libtorrent (Rasterbar) Yes No Yes Yes No Yes Yes Yes Yes
MonoTorrent Yes Yes Yes Yes Yes Yes Yes Yes Yes
BitTorrent Library Super-seeding Tracker UPnP[25] NAT Port Mapping Protocol NAT traversal DHT[26] Peer exchange Encryption UDP tracker
Supported Features II
BitTorrent Library Cache[44] Web seeding[45] Broadcatching (RSS) Prioritization Selective downloads SOCKS Remote control via web Engine Notes
BTSharp Yes No No No No No No No
Libtorrent (Rakshasa) Partial No No Yes Yes No Yes No No built-in Cache-Disk cache but a Delayed sync
Libtorrent (Rasterbar) Yes Yes No Yes Yes Yes No ?
MonoTorrent Yes Yes Yes Yes Yes No Yes No
BitTorrent Library Cache[44] Web seeding[45] Broadcatching (RSS) Prioritization Selective downloads SOCKS Remote control via web Engine Notes

[edit] Notes

  1. ^ a b Unless otherwise noted, programs marked "Yes" without other inline citations have been tested 100% Free or 100% Clean by Softpedia
  2. ^ "BitComet 1.09 Final". Softpedia. http://www.softpedia.com/get/Internet/File-Sharing/BitComet.shtml. Retrieved on 2009-02-16. 
  3. ^ Ernesto (2007-01-16). "BitThief Spies on their Users". TorrentFreak. http://torrentfreak.com/bitthief-spies-on-their-users/. Retrieved on 2009-02-16. 
  4. ^ "BitTorrent 6.1.2 Build 15169". Softpedia. http://www.softpedia.com/get/Internet/File-Sharing/BitTorrent.shtml. Retrieved on 2009-05-07. 
  5. ^ "FlashGet 3.0.0.1024 Beta / 2.11.0.1188 / 1.9.6". Softpedia. http://www.softpedia.com/get/Internet/Download-Managers/FlashGet.shtml. Retrieved on 2009-02-16. 
  6. ^ "Miro 2.0". CNET Download.com. http://www.download.com/Miro/3000-13632_4-10587758.html. Retrieved on 2009-02-16. 
  7. ^ "MP3 Rocket 5.1.9". Softpedia. http://www.softpedia.com/get/Internet/File-Sharing/MP3-Rocket.shtml. Retrieved on 2009-02-16. 
  8. ^ http://forum.utorrent.com/viewtopic.php?id=11
  9. ^ http://utorrent.com/faq.php#Is_.C2.B5Torrent_open_source.3F
  10. ^ "µTorrent 1.9 Build 15380 Alpha / 1.8.3 Build 15358 Beta /1.8.2 Build 15285 Stable". Softpedia. http://www.softpedia.com/get/Internet/File-Sharing/uTorrent.shtml. Retrieved on 2009-05-07. 
  11. ^ "Vuze (formerly Azureus) 4.1.0.3 Beta 5 / 4.1.0.2". Softpedia. http://www.softpedia.com/get/Internet/File-Sharing/Azureus.shtml. Retrieved on 2009-02-16. 
  12. ^ http://faq.vuze.com/?CategoryID=30
  13. ^ Official packages for ports are no longer available.
  14. ^ http://mac.utorrent.com/
  15. ^ a b Clients that have been seen in the real world to actually work with IPv6, see IPv6 BitTorrent Clients
  16. ^ a b Announcements to the tracker are made via IPv6 if possible, but the client doesn't listen on the respective port.
  17. ^ The original Aria project was discontinued, the new rewrite of Aria by a new development team no longer supports a GUI.
  18. ^ a b Linux version works, Windows version has not been working with IPv6 due to Java Bug 6230761
  19. ^ [1]
  20. ^ http://libtorrent.rakshasa.no/ticket/1111
  21. ^ a b c d e f g h i j When Azureus module is used
  22. ^ [2]
  23. ^ http://utorrent.com/faq.php#How_can_.C2.B5Torrent_be_so_small_and_so_fast.3F
  24. ^ µTorrent 1.8 released
  25. ^ a b c d Automatically configure port forwarding (requires Router with UPnP support)
  26. ^ a b c d DHT permits use of trackerless torrents (with supporting clients) to resume normal torrents when their tracker is down. However, some trackers that register their users for keeping tabs on fair usage (such as a ratio of bytes downloaded to uploaded) may not reliably measure and update usage for users employing DHT.
  27. ^ a b c Tracker included with Linux binaries and with source, but not with Windows binary
  28. ^ a b Exchanging with BT 6 and µTorrent clients (and now MooPolice)
  29. ^ It's UDP based, an experimental feature and only supported by other Azureus based clients
  30. ^ a b Has its own DHT, a mainline-DHT compatible implementation is available as plugin
  31. ^ [3], list of features not yet added.
  32. ^ Localhost uses a DHT protocol called Kademlia to connect to peers that are running Localhost. Each peer has an index of directories and files that it shares with peers that it is connected to. No one peer is responsible for storing the entire directory structure, it is distributed among everyone. It is collaboratively maintained, edited and built upon by all users in a popularity based system.
  33. ^ Weekly - Desktop Team - by Opera Desktop Team
  34. ^ Opera 9.5 Beta 1 for Windows Changelog
  35. ^ It's not a DHT network, but Shareaza uses Gnutella2 to find other Shareaza clients.
  36. ^ Exchanges with µTorrent and Azureus peers.
  37. ^ µTorrent 1.6 released
  38. ^ uTorrent: Make Your Own BitTorrent Tracker
  39. ^ Setting up µTorrent for your internet connection
  40. ^ µTorrent's [4] DHT implementation is the same as Mainline and BitComet's, but unfortunately this is incompatible with Azureus's implementation.
  41. ^ How To Encrypt BitTorrent Traffic
  42. ^ [5], additional text.
  43. ^ Since version 2.5.0.2. It's UDP based, an experimental feature and only supported by other Azureus clients
  44. ^ a b c d Reduces disk usage, file fragmentation (in case it is not preallocated) and latencies due to larger written blocks and cached data for hash checking finished pieces.
  45. ^ a b c d Recently implemented (unofficial) web seeding feature, see HTTP-Based Seeding Specification
  46. ^ a b Supports the Getright Webseeding spec in addition to the Bittornado spec[6]
  47. ^ a b c Provides a Java-based and a simple HTML/JS based WebUI
  48. ^ Deluge RSS support is not yet implemented in Windows version of the client
  49. ^ The FlexRSS plugin is no longer supported in versions 1.x and greater. See http://dev.deluge-torrent.org/wiki/About
  50. ^ See task #4401 Socks Proxy; however, http proxy is supported.
  51. ^ Integrated
  52. ^ 3rd party utility RSSDler
  53. ^ Since Shareaza v2.4.0.2 r7924
  54. ^ Max active torrents number depends on respective user settings and is limited to 10.
  55. ^ http://torrentfreak.com/utorrent-17-stable-finally-released/
  56. ^ http://torrentfreak.com/how-to-use-rss-bittorrent-to-download-tv-shows/
  57. ^ http://www.download.com/uTorrent/3000-2196_4-10528327.html

[edit] See also

[edit] External links

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