The following is a general comparison of BitTorrent clients, which are

computer program A computer program is a sequence or set of instructions in a programming language for a computer to Execution (computing), execute. It is one component of software, which also includes software documentation, documentation and other intangibl ...

s designed for

peer-to-peer file sharing Peer-to-peer file sharing is the distribution and sharing of digital media using peer-to-peer (P2P) networking technology. P2P file sharing allows users to access media files such as books, music, movies, and games using a P2P software program th ...

using the BitTorrent protocol. The BitTorrent protocol coordinates segmented file transfer among peers connected in a swarm. A BitTorrent client enables a user to exchange data as a peer in one or more swarms. Because BitTorrent is a

peer-to-peer Peer-to-peer (P2P) computing or networking is a distributed application architecture that partitions tasks or workloads between peers. Peers are equally privileged, equipotent participants in the network, forming a peer-to-peer network of Node ...

communications protocol A communication protocol is a system of rules that allows two or more entities of a communications system to transmit information via any variation of a physical quantity. The protocol defines the rules, syntax, semantics (computer science), sem ...

that does not need a server, the BitTorrent definition of ''client'' differs from the conventional meaning expressed in the

client–server model The client–server model is a distributed application structure that partitions tasks or workloads between the providers of a resource or service, called servers, and service requesters, called clients. Often clients and servers communicate ov ...

. Bram Cohen, author of the BitTorrent protocol, made the first BitTorrent client, which he also called

BitTorrent BitTorrent is a Protocol (computing), communication protocol for peer-to-peer file sharing (P2P), which enables users to distribute data and electronic files over the Internet in a Decentralised system, decentralized manner. The protocol is d ...

, and published it in July 2001. Many BitTorrent programs are

open-source software Open-source software (OSS) is Software, computer software that is released under a Open-source license, license in which the copyright holder grants users the rights to use, study, change, and Software distribution, distribute the software an ...

; others are freeware,

adware Adware, often called advertising-supported software by its developers, is software that generates revenue by automatically displaying Online advertising, online advertisements in the user interface or on a screen presented during the installatio ...

shareware Shareware is a type of proprietary software that is initially shared by the owner for trial use at little or no cost. Often the software has limited functionality or incomplete documentation until the user sends payment to the software developer. ...

. Some

download manager A download manager is a type of software that manages the downloading of files from the Internet, which may be built into a web browser, or as a standalone program. Functions A download manager manages files being downloaded from the internet. ...

s, such as FlashGet and GetRight, are BitTorrent-ready. Opera 12, a

web browser A web browser, often shortened to browser, is an application for accessing websites. When a user requests a web page from a particular website, the browser retrieves its files from a web server and then displays the page on the user's scr ...

, can also transfer files via BitTorrent. In 2013 Thunder Networking Technologies publicly revealed that some of their employees surreptitiously distributed a Trojan horse with certain releases of

Xunlei Xunlei Limited () is a Chinese multinational technology company and an online service provider founded in 2003. The subsidiary of Xunlei Limited, Shenzhen Xunlei Networking Technologies, Co., Ltd. () was formerly known as Sandai Technologies (Sh ...

, the company's BitTorrent-ready download manager. Xunlei is included in the comparison tables.

Applications

General

Operating system support

Interface and programming

Features I

Features II

Libraries

; General ; Operating system support and programming language ; Supported features 1 ; Supported features 2

Notes

References

{{Use dmy dates, date=December 2019 BitTorrent BitTorrent clients it:BitTorrent#Client