View source for User:Helpfoss/Comparison of BitTorrent clients

A '''BitTorrent client''' is a [[computer program]] that manages using the [[BitTorrent (protocol)|BitTorrent protocol]].

== End user ==

===Release dates, operating systems, user interface ===
This is a table of ''[[Free and open source software|FOSS]]'' software being ''actively'' developed. <small>(For a more complete table, please visit: [[Comparison of BitTorrent clients]])</small>

* ''No'' means that it does not exist or was never released.
* ''Partial'' means that the BitTorrent client works, but lacks important functionality or is very unstable compared to versions for other OSs
* ''Beta'' means that a version of the BitTorrent client is fully functional and has been released, but is still in development
* ''Yes'' means that the BitTorrent client has been officially released in a fully functional, stable version.
* ''Dropped'' means that the latest stable version of the BitTorrent client does not work on the operating system, although an older version is available that does. The number in parentheses is the last known stable version which was officially released for that OS.

{| style="font-size: 85%; text-align: center;" class="wikitable sortable"
|-
! scope="col" class="unsortable" | Logo
! scope="col" | BitTorrent client
! scope="col" | Initial release
! scope="col" | Latest stable
! scope="col" | [[Linux]]
! scope="col" | [[Microsoft Windows|Windows]]
! scope="col" | [[Mac OS]]
! scope="col" | [[Berkeley Software Distribution|BSD]]
! scope="col" | Other
! scope="col" | [[Graphical user interface|GUI]]
! scope="col" | WebUI
! scope="col" | [[Command-line interface|CLI]]
! scope="col" | remote
|-
| 
! {{rh}} | Aria2 <ref>{{cite web|url=http://aria2.sourceforge.net/ |title=Aria2 project |accessdate=2009-11-28}}</ref>
| 2006-02-17
| ?
| {{yes}}  
| {{yes}}
| {{yes}}
| {{yes|[[FreeBSD]]}}
| {{yes|[[Solaris (operating system)|Solaris]]}}
| {{no}}
| {{yes}}
| {{yes}}
| {{yes|[[Daemon (computer software)|Daemon]], XML over HTTP remote control API}}
|-
| 
! {{rh}} | Bitflu <ref>{{cite web|url=http://bitflu.workaround.ch/ |title=Bitflu |publisher=Bitflu.workaround.ch |date= |accessdate=2009-11-28}}</ref>
| 2007-12-13
| {{Latest stable software release/Bitflu}}
| {{yes}}
| {{no}}
| {{yes}}
| {{yes|[[FreeBSD]]}}
| {{no}}
| {{no}}
| {{yes}}
| {{yes}}
| {{yes|[[Telnet]]}}
|-
| [[Image:Deluge-Logo.svg|20px|Deluge]]
! {{rh}} | [[Deluge (software)|Deluge]]
| 2006-09-25
| {{Latest stable software release/Deluge}}
| {{yes}}
| {{yes}} 
| {{yes}}
| {{yes|[[FreeBSD]]}}
| {{yes|[[Solaris (operating system)|Solaris]]}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes|[[Daemon (computer software)|Daemon]]}}
|-
| 
! {{rh}} | Flush <ref>{{cite web|url=http://sourceforge.net/projects/flush/ |title=Flush project |publisher=[[SourceForge]] |date= |accessdate=2011-08-05}}</ref>
| 2009-01-01
| {{Latest stable software release/Flush}}
| {{yes}}
| {{no}}
| {{no}}
| {{no}}
| {{no}}
| {{yes}}
| {{no}}
| {{no}}
| {{no}}
|-
| [[Image:FDM icon.png|20px|Free Download Manager]]
! {{rh}} | [[Free Download Manager]]
| 2004
| {{Latest stable software release/Free Download Manager}}
| {{no}}
| {{yes}}
| {{no}}
| {{no}}
| {{no}}
| {{yes}}
| {{yes}}
| {{partial}}
| {{no}}
|-
| 
! {{rh}} | [[KGet]]
| 2002-05-26
| {{Latest stable software release/KDE Software Compilation 4}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes|[[FreeBSD]]}}
| {{no}}
| {{yes}}
| {{yes}}
| {{Partial}} <ref>[[Qdbus]] interface</ref>
| {{no}}
|-
| [[Image:KTorrent_icon.svg|20px|KTorrent]]
! {{rh}} | [[KTorrent]]
| 2006-08-07
| {{Latest stable software release/KTorrent}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes|[[FreeBSD]]}}
| {{no}}
| {{yes}}
| {{yes}}
| {{partial}}
| {{no}}
|-
| [[Image:Miro_icon.png|20px|Miro]]
! {{rh}} | [[Miro (software)|Miro]]
| 2006-02-21
| {{Latest stable software release/Miro}} 2011-07-21
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes|[[FreeBSD]]}}
| {{no}}
| {{yes}}
| {{no}}
| {{no}}
| {{no}}
|-
| 
! {{rh}} | [[MLDonkey]]
| 2001-12
| {{Latest stable software release/MLDonkey}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes|[[FreeBSD]], [[OpenBSD]]}}
| {{yes|[[Solaris (operating system)|Solaris]], [[MorphOS]]}}
| {{yes|Network GUI}}
| {{yes}}
| {{partial}}
| {{yes|Telnet}}
|-
| 
! {{rh}} | [[OneSwarm]]
| 2008
| <!--{{Latest stable software release/OneSwarm}}-->
| {{yes}}
| {{yes}}
| {{yes}}
| {{no}}
| {{yes|[[Java (software platform)|Java]]}}
| {{partial}}
| {{yes}}
| {{partial|No/Partial}}
| {{no}}
|-
| [[Image:Qbittorrent logo.png|20px|qBittorrent]]
! {{rh}} | [[qBittorrent]]
| 2006-03-22
| {{Latest stable software release/qBittorrent}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes|[[FreeBSD]]}}
| {{yes|[[eComStation]]}}
| {{yes|[[Qt (toolkit)]]}}
| {{yes}}
| {{partial}}
| {{no}}
|-
| 
! {{rh}} | [[rTorrent]]
| 2004-07-15
| {{Latest stable software release/rTorrent}}
| {{yes}}
| {{no}}
| {{yes}}
| {{yes|[[FreeBSD]], [[OpenBSD]]}}
| {{yes|[[Solaris (operating system)|Solaris]], [[OpenWrt]]}}
| {{no}}
| {{yes2|Third Party}}
| {{yes}}
| {{yes|[[SCGI]]}}
|-
|
! {{rh}} | [[Transmission (BitTorrent client)|Transmission]]
| 2005-09-15
| {{Latest stable software release/Transmission (BitTorrent client)}}
| {{yes}}
| {{no}}
| {{yes}}
| {{yes|[[FreeBSD]], [[NetBSD]], [[OpenBSD]]}}
| {{yes|[[Solaris (operating system)|Solaris]], [[OpenWrt]]}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes|[[JavaScript Object Notation|JSON]]-[[Remote procedure call|RPC]] over [[Hypertext Transfer Protocol|HTTP]] remote control API}}
|-
| [[Image:Tribler_logo.png|20px|Tribler]]
! {{rh}} | [[Tribler]]
| 2006-02-26
| {{Latest stable software release/Tribler}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes|[[FreeBSD]]}}
| {{no}}
| {{yes}}
| {{no}}
| {{partial}}
| {{no}}
|- class="sortbottom"
! scope="col" | Logo
! scope="col" | BitTorrent client
! scope="col" | Initial release
! scope="col" | Latest stable
! scope="col" | [[Linux]]
! scope="col" | [[Microsoft Windows|Windows]]
! scope="col" | [[Mac OS]]
! scope="col" | [[Berkeley Software Distribution|BSD]]
! scope="col" | Other
! scope="col" | [[Graphical user interface|GUI]]
! scope="col" | WebUI
! scope="col" | [[Command-line interface|CLI]]
! scope="col" | remote
|}

=== Features ===
=== Features I ===

{| style="font-size: 85%; text-align: center;" class="wikitable sortable"
|-
! BitTorrent client
! [[Magnet URI]]
! [[Super-seeding]]
! [[BitTorrent tracker|Embedded tracker]]
! [[Universal Plug and Play|UPnP]]<ref name="upnp">Automatically configure port forwarding (requires [[Router (computing)|Router]] with [[Universal Plug and Play|UPnP]] support)</ref>
! [[NAT Port Mapping Protocol]]
! [[NAT traversal]]<ref name="udp_nat">Many clients claim to support this, but just uPnP calls for opening a TCP port is not effective and disabled by factory default in most new hardware. "UDP NAT Traversal" is the proper working solution, supported by just a few.</ref>
! [[Distributed hash table|DHT]]<ref name="dht">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.</ref>
! [[Peer exchange]]
! [[BitTorrent protocol encryption|Encryption]]
! [[UDP tracker]]
! [[Local Peer Discovery|LPD]]
! [[Proxy]]
|-
! {{rh}} | Aria2
| {{yes}}
| {{no}}
| {{yes}}
| {{no}}
| {{no}}
| {{no}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{no}}
|-
! {{rh}} | Bitflu
| {{yes}}
| {{no}}
| {{no}}
| {{no}}
| {{no}}
| {{no}}
| {{yes}}
| {{yes}}
| {{no}}
| {{yes}}
| {{no}}
| {{no}}
|-
! {{rh}} | [[Deluge (software)|Deluge]]
| {{yes}}
| {{no}}
| {{no}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes|HTTP(S), SOCKS4/5}}
|-
! {{rh}} | Flush
| {{yes}}
| {{no}}
| {{no}}
| {{yes}}
| {{yes}}
| {{no}}
| {{yes}}
| {{yes}}
| {{no}}
| {{no}}
| {{yes}}
| {{no}}
|-
! {{rh}} | [[Free Download Manager]]
| {{no}}
| {{no}}
| {{no}}
| {{no}}
| {{no}}
| {{no}}
| {{yes}}
| {{yes}}
| {{no}}
| {{no}}
| {{no}}
| {{no}}
|-
! {{rh}} | [[KGet]]
| 
| 
| 
| 
| 
| 
| 
| 
| 
| 
| 
| 
|-
! {{rh}} | [[KTorrent]]
| {{yes}}
| {{yes}}
| {{no}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{partial}}
| {{yes|HTTP,SOCKS4/5}}
|-
! {{rh}} | [[Miro]]
| 
| 
| 
| 
| 
| 
| 
| 
| 
| 
| 
| 
|-
! {{rh}} | [[MLDonkey]]
| {{no}}
| {{no}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{no}}
| {{no}}
| {{no}}
| {{no}}
| {{yes}}
| {{no}}
| {{no}}
|-
! {{rh}} | [[OneSwarm]]
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{no}}
| {{no}}
|-
! {{rh}} | [[qBittorrent]]
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes|HTTP(S),SOCKS4/5}}
|-
! {{rh}} | [[rTorrent]]
| {{yes}}<ref>aided with a shell script documented in {{cite web|url=http://libtorrent.rakshasa.no/ticket/2100 |title=That magnet uri ticket thing reincarnated |publisher=libtorrent.rakshasa.no |date= |accessdate=2011-07-04}}</ref>
| {{yes}}
| {{no}}
| {{no}}
| {{no}}
| {{no}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{no}}<ref name=ticket>{{cite web|url=http://libtorrent.rakshasa.no/ticket/1188 |title=local peer discovery |publisher=libtorrent.rakshasa.no |date= |accessdate=2010-04-17}}</ref>
| {{no}}
|-
! {{rh}} | [[Transmission (BitTorrent client)|Transmission]]
| {{yes}}
| {{no}}
| {{no}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}<ref>Exchanges with µTorrent and Azureus peers.</ref>
| {{yes}}
| {{yes}}
| {{yes}}
| {{no}} <ref>Proxy support was removed in version 2.12: {{cite web|url=https://trac.transmissionbt.com/ticket/3688 |title=Ticket #3688 |publisher=trac.transmissionbt.com |date= |accessdate=2011-06-11}}</ref>
|-
! {{rh}} | [[Tribler]]
| {{yes}}
| {{no}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{no}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{no}}
| {{no}}
| {{no}}
|- class="sortbottom"
! BitTorrent client
! [[Magnet URI]]
! [[Super-seeding]]
! [[BitTorrent tracker|Embedded tracker]]
! [[Universal Plug and Play|UPnP]]<ref name="upnp"/>
! [[NAT Port Mapping Protocol]]
! [[NAT traversal]]<ref name="udp_nat"/>
! [[Distributed hash table|DHT]]<ref name="dht"/>
! [[Peer exchange]]
! [[BitTorrent protocol encryption|Encryption]]
! [[UDP tracker]]
! [[Local Peer Discovery|LPD]]
! [[Proxy]]
|}

=== Features II ===

{| style="font-size: 85%; text-align: center;" class="wikitable sortable"
|-
! BitTorrent client
! [[Cache]]<ref name="cache">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.</ref>
! [[Webseeding|Web seeding]]<ref name="webseed">Recently implemented (unofficial) web seeding feature, see [http://www.bittornado.com/docs/webseed-spec.txt HTTP-Based Seeding Specification]</ref>
! [[Broadcatching]] ([[RSS]])
! Prioritization
! Selective downloads
! [[SOCKS]]
! Tracker exchange <ref name="tex">http://www.bittorrent.org/beps/bep_0028.html</ref>
! Remote control via web
! [[BitTorrent (protocol)#Indexing|Search engine]]
! Auto updates
! Notes
|-
! {{rh}} | Aria2
| {{no}}
| {{no}}
| {{no}}
| {{no}}
| {{yes}}
| {{yes}}
| {{no}}
| {{yes}}
| {{no}}
| {{no}}
|
|-
! {{rh}} | Bitflu
| {{partial}}
| {{no}}
| {{no}}
| {{no}}
| {{yes}}
| {{no}}
| {{no}}
| {{yes}}
| {{no}}
| {{no}}
| No built-in Cache-Disk cache but a Delayed commit
|-
! {{rh}} | [[Deluge (software)|Deluge]]
| {{yes}}
| {{yes}}
| {{yes2}} Plugin<ref>FlexRSS plugin not supported in current 1.2 release: http://dev.deluge-torrent.org/wiki/Plugins/FlexRSS</ref>
| {{yes}}
| {{yes}}
| {{yes}}
| {{no}}
| {{yes}}
| {{no}}
| {{yes2}} Notification, and update via [[package management system]]
|
|-
! {{rh}} | Flush
| {{no}}
| {{no}}
| {{no}}
| {{yes}}
| {{yes}}
| {{no}}
| {{no}}
| {{no}}
| {{no}}
| {{no}}
|
|-
! {{rh}} | [[Free Download Manager]]
| {{no}}
| {{no}}
| {{no}}
| {{yes}}
| {{yes}}
| {{no}}
| {{no}}
| {{yes}}
| {{no}}
| {{Optional}}
|
|-
! {{rh}} | [[Miro]]
| 
| 
| 
| 
| 
| 
| 
| 
| 
| 
|
|-
! {{rh}} | [[KTorrent]]
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{no}}
| {{yes}}
| {{partial|Built-in Web browser}}
| {{yes2}} via [[package management system]]
|
|-
! {{rh}} | [[Miro]]
| 
| 
| 
| 
| 
| 
| 
| 
| 
| 
|
|-
! {{rh}} | [[MLDonkey]]
| {{yes}}
| {{no}}
| {{partial|3rd party [[Bash (Unix shell)|bash]] script}}
| {{yes}}
| {{no}}
| {{no}}<ref>See [http://savannah.nongnu.org/task/?func=detailitem&item_id=4401 task #4401 Socks Proxy]; however, http proxy is supported.</ref>
| {{no}}
| {{yes}}
| {{partial|Built-into Web browser}}
| {{yes2}} via [[package management system]]
|
|-
! {{rh}} | [[OneSwarm]]
| {{yes}}
| {{yes}}
| {{no}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{no}}
| {{no}}
| {{no}}
| {{yes}}
| Based on Azureus, has all BitTyrant features
|-
! {{rh}} | [[qBittorrent]]
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}<ref>Integrated</ref>
| {{yes2}} via [[package management system]]
|
|-
! {{rh}} | [[rTorrent]]
| {{partial}}
| {{no}}
| {{yes2}}3rd party utility <ref name=rtorrent_rss>3rd party utility [http://code.google.com/p/rssdler/ RSSDler]</ref>
| {{yes}}
| {{yes}}
| {{no}}
| {{no}}
| {{yes}}
| {{no}}
| {{yes2}} via [[package management system]]
| No built-in Cache-Disk cache but a Delayed sync
|-
! {{rh}} | [[Transmission (BitTorrent client)|Transmission]]
| {{yes}}
| {{yes}}
| {{no}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{no}}
| {{yes}}
| {{no}}
| {{yes}}
|
|-
! {{rh}} | [[Tribler]]
| {{yes}}
| {{yes}}
| {{yes}}
| {{yes}}
| {{no}}
| {{no}}
| {{no}}
| {{no}}
| {{yes}}
| {{yes}}
| Fully distributed keyword search; integrated anti-spam measures<ref>{{cite web|url=http://torrentfreak.com/truly-decentralized-bittorrent-downloading-has-finally-arrived-101208/ |title=Truly Decentralized BitTorrent Downloading Has Finally Arrived |publisher=TorrentFreak |date=2010-12-08 |accessdate=2010-12-16}}</ref>
|- class="sortbottom"
! BitTorrent client
! [[Cache]]<ref name="cache"/>
! [[Webseeding|Web seeding]]<ref name="webseed"/>
! [[Broadcatching]] ([[RSS]])
! Prioritization
! Selective downloads
! [[SOCKS]]
! Tracker exchange <ref name="tex"/>
! Remote control via web
! [[BitTorrent (protocol)#Indexing|Search Engine]]
! Auto updates
! Notes
|}

== Developer ==
=== License, libraries and programming ===
{| style="font-size: 85%; text-align: center;" class="wikitable sortable"
|-
! BitTorrent client
! [[Software license]]
! [[Programming language]]
! Based on
! [[IPv6]]<ref name="ipv6">Clients that have been seen in the real world to actually work with IPv6, see [http://www.sixxs.net/tools/tracker/clients/ IPv6 BitTorrent Clients]</ref>
! [[Micro Transport Protocol|µTP]]
|-
! {{rh}} | Aria2
| {{free|[[GPL]]}}
| [[C++]]
| -
| {{yes}} <ref>http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=448390#20</ref>
| {{no}}
|-
! {{rh}} | Bitflu
| {{free|[[Artistic License]]}}
| [[Perl]]
| -
| {{yes}}
| {{no}}
|-
! {{rh}} | [[Deluge (software)|Deluge]]
| {{free|[[GPL]]}}
| [[Python (programming language)|Python]] and [[C++]]
| [[libtorrent (Rasterbar)]]
| {{yes}} <ref>{{cite web|url=http://dev.deluge-torrent.org/ticket/335 |title=#335 (can not connect to ipv6 only tracker) – Deluge |publisher=Dev.deluge-torrent.org |date= |accessdate=2009-11-28}}</ref>
| {{no}}
|-
! {{rh}} | Flush
| {{free|[[GPL]]}}
| [[C++]]
| [[libtorrent (Rasterbar)]]
| {{yes}}
| {{no}}
|-
! {{rh}} | [[Free Download Manager]]
| {{free|[[GPL]]}}
| [[C++]]
| [[libtorrent (Rasterbar)]]
| {{dunno}}
| {{no}}
|-
! {{rh}} | [[KGet]]
| {{free|[[GPL]]}}
| [[C++]]
| -
| {{yes}}
| {{no}}
|-
! {{rh}} | [[KTorrent]]
| {{free|[[GPL]]}}
| [[C++]]
| -
| {{yes}}
| {{yes}}<ref>{{cite web|url=http://ktorrent.org/?q=node/42 |title=KTorrent 4.0 is out |publisher=KTorrent |date= |accessdate=2010-05-24}}</ref>
|-
! {{rh}} | [[Miro (software)|Miro]]
| {{free|[[GPL]]}}
| [[C++]]
| [[libtorrent (Rasterbar)]]
| {{dunno}}
| {{no}}
|-
! {{rh}} | [[MLDonkey]]
| {{free|[[GPL]]}}
| [[Ocaml]]
| -
| {{no}}
| {{no}}
|-
! {{rh}} | [[OneSwarm]]
| {{free|[[GPL]]}}
| [[Java (programming language)|Java]]
| Azureus
| {{yes}}
| {{no}}
|-
! {{rh}} | [[qBittorrent]]
| {{free|[[GPL]]}}
| [[C++]]
| [[libtorrent (Rasterbar)]]
| {{yes}}
| {{yes}}
|-
! {{rh}} | [[rTorrent]]
| {{free|[[GPL]]}}
| [[C++]]
| [[libTorrent (Rakshasa)]]
| {{no}}<ref>{{cite web|url=http://libtorrent.rakshasa.no/ticket/1111 |title=#1111 (Support for IPv6?) – The libTorrent and rTorrent Project |publisher=Libtorrent.rakshasa.no |date=2009-07-20 |accessdate=2009-11-28}}</ref>
| {{no}}
|-
! {{rh}} | [[Transmission (BitTorrent client)|Transmission]]
| {{free|[[GPL]]/[[MIT License]]}}
| [[C (programming language)|C]]
| -
| {{yes}}
| {{yes|From 2.30}}
|-
! {{rh}} | [[Tribler]]
| {{free|[[LGPL]]}}
| [[Python (programming language)|Python]]
| ABC
| {{yes}}
| {{no}}
|- class="sortbottom"
! BitTorrent client
! [[Programming language]]
! Based on
! [[IPv6]]<ref name="ipv6"/>
! [[Micro Transport Protocol|µTP]]
|}

= Libraries =
''Note: libraries in purple are no longer in development.''
; General

{| style="font-size: 85%; text-align: center;" class="wikitable sortable"
|-
! BitTorrent library
! First public release date
! Latest stable
! [[Software license]]
! [[Spyware]], [[Adware]], [[Malware]] -free <!--CITATION NEEDED IF ASSERTING TRUE UNLESS OBVIOUS IF GOOGLED-->
|-
! {{rh} | [[User:Jonas.lundqvist/libktorrent|libKtorrent]]
|
|
| {{free|[[GPL]]}}
| {{yes}}
|-
! {{rh}} | [[Libtorrent (Rakshasa)]]
| {{start date and age|2004|07|15}}
| {{Latest stable software release/rTorrent}}
| {{free|[[GPL]]}}
| {{yes}}
|-
! {{rh}} | [[Libtorrent (Rasterbar)]]
| {{start date and age|2005|09|08}}<ref>http://sourceforge.net/projects/libtorrent/files/</ref>
| {{Latest stable software release/libtorrent}}
| {{free|[[BSD License|BSD]]}}
| {{yes}}
|-
! {{rh}} | [[MonoTorrent]]
| {{start date and age|2006|09}}
| {{Latest stable release/MonoTorrent}}
| {{free|[[MIT License|MIT/X11]]}}
| {{yes}}
|-
! {{rh}} | [http://turn.github.com/ttorrent ttorrent]
| {{start date and age|2011|06|27}}
| 1.0.3<ref>https://github.com/turn/ttorrent/tree/ttorrent-1.0.3</ref>
| {{free|[[Apache Software License]]}}
| {{yes}}
|- class="sortbottom"
! BitTorrent library
! First public release date
! Latest stable
! [[Software license]]
! [[Spyware]], [[Adware]], [[Malware]] -free
|}

; OS support and programming language

{| style="font-size: 85%; text-align: center;" class="wikitable sortable"
|-
! BitTorrent library
! [[Linux]]/[[Unix]]
! [[Microsoft Windows|Windows]]
! [[OS X]]
! [[Application programming interface|API]]
! [[Programming language]]
|-
! {{rh}} | [[Libtorrent (Rakshasa)]]
| {{yes}} || {{no}} || {{yes}} || {{yes}}
| [[C++]]
|-
! {{rh}} | [[Libtorrent (Rasterbar)]]
| {{yes}} || {{yes}} || {{yes}} || {{yes}}
| [[C++]]
|-
! {{rh}} | [[MonoTorrent]]
| {{yes}} || {{yes}} || {{yes}} || {{yes}}
| [[C Sharp (programming language)|C#]]
|-
! {{rh}} | [http://turn.github.com/ttorrent ttorrent]
| {{yes}} || {{yes}} || {{yes}} || {{yes}}
| [[Java (programming language)|Java]]
|- class="sortbottom"
! BitTorrent library
! [[Linux]]/[[Unix]]
! [[Microsoft Windows|Windows]]
! [[OS X]]
! [[Application programming interface|API]]
! [[Programming language]]
|}

; Supported features I

{| style="font-size: 85%; text-align: center;" class="wikitable sortable"
|-
! BitTorrent library
! [[Super-seeding]]
! [[BitTorrent tracker|Tracker]]
! [[Universal Plug and Play|UPnP]]<ref name="upnp"/>
! [[NAT Port Mapping Protocol]]
! [[NAT traversal]]<ref name="udp_nat"/>
! [[Distributed hash table|DHT]]<ref name="dht"/>
! [[Peer exchange]]
! [[BitTorrent protocol encryption|Encryption]]
! [[UDP tracker]]
! [[Local Peer Discovery|LPD]]
! [[Fast Extensions]]
! [[Magnet URI]]
|-
! {{rh}} | [[Libtorrent (Rakshasa)]]
| {{yes}} || {{yes}} || {{no}} || {{dunno}} || {{dunno}} || {{yes}} || {{yes}} || {{yes}} || {{yes}} || {{dunno}} || {{no}} || {{yes}}
|-
! {{rh}} | [[Libtorrent (Rasterbar)]]
| {{yes}} || {{yes}} || {{yes}} || {{yes}} || {{yes}} || {{yes}} || {{yes}} || {{yes}} || {{yes}}
| {{yes}}<ref>{{cite web|url=http://www.rasterbar.com/products/libtorrent/features.html|title=libtorrent manual: features|accessdate=2009-12-12}}</ref> || {{yes}} || {{yes}}
|-
! {{rh}} | [[MonoTorrent]]
| {{yes}} || {{yes}} || {{yes}} || {{yes}} || {{no}} || {{yes}} || {{yes}} || {{yes}} || {{yes}} || {{yes}} || {{yes}} || {{yes}}
|-
! {{rh}} | [http://turn.github.com/ttorrent ttorrent]
| {{no}} || {{yes}} || {{no}} || {{no}} || {{no}} || {{no}} || {{no}} || {{no}} || {{no}} || {{no}} || {{no}} || {{no}}
|- class="sortbottom"
! BitTorrent library
! [[Super-seeding]]
! [[BitTorrent tracker|Tracker]]
! [[Universal Plug and Play|UPnP]]<ref name="upnp"/>
! [[NAT Port Mapping Protocol]]
! [[NAT traversal]]<ref name="udp_nat"/>
! [[Distributed hash table|DHT]]<ref name="dht"/>
! [[Peer exchange]]
! [[BitTorrent protocol encryption|Encryption]]
! [[UDP tracker]]
! [[Local Peer Discovery|LPD]]
! [[Fast Extensions]]
! [[Magnet URI]]
|}

; Supported features II

{| style="font-size: 85%; text-align: center;" class="wikitable sortable"
|-
! BitTorrent library
! [[Cache]]<ref name="cache"/>
! [[Webseeding|Web seeding]]<ref name="webseed"/>
! [[Broadcatching]] ([[RSS]])
! Prioritization
! Selective downloads
! [[SOCKS]]
! Remote control via web
! [[BitTorrent (protocol)#Indexing|Engine]]
! Notes
|-
! {{rh}} | [[Libtorrent (Rakshasa)]]
| {{partial}} || {{no}} || {{no}} || {{yes}} || {{yes}} || {{no}} || {{yes}} || {{no}} || No built-in Cache-Disk cache but a Delayed sync
|-
! {{rh}} | [[Libtorrent (Rasterbar)]]
| {{yes}} || {{yes}} || {{no}} || {{yes}} || {{yes}} || {{yes}} || {{yes}} || {{dunno}} ||
|-
! {{rh}} | [[MonoTorrent]]
| {{yes}} || {{yes}} || {{yes}} || {{yes}} || {{yes}} || {{no}} || {{yes}} || {{no}} ||
|-
! {{rh}} | [http://turn.github.com/ttorrent ttorrent]
| {{partial}} || {{no}} || {{no}} || {{no}} || {{no}} || {{no}} || {{no}} || {{no}} ||
|- class="sortbottom"
! BitTorrent library
! [[Cache]]<ref name="cache"/>
! [[Webseeding|Web seeding]]<ref name="webseed"/>
! [[Broadcatching]] ([[RSS]])
! Prioritization
! Selective downloads
! [[SOCKS]]
! Remote control via web
! [[BitTorrent (protocol)#Indexing|Engine]]
! Notes
|}

== Notes ==
{{Reflist|2}}