The usage share of BitTorrent clients is the percentage of users that use a particular BitTorrent client, regardless of version.

2020

A study conducted in March 2020 by TorrentFreak
RankApplicationMarket Share
1μTorrent68.6%
2BitTorrent6.6%
3Libtorrent (μTorrent's web interface reports this as its client ID)6.3%
4Transmission5.1%
5MediaGet3.7%
6qBittorrent3.4%
7Zona3.3%
8Deluge0.9%
9BitComet0.6%
10BiglyBT (operated by former developers of Vuze)0.3%
11Free Download Manager0.2%
12BitSpirit0.2%
13BitLord0.1%
14Tribler<0.1%
14FrostWire<0.1%
14Tixati<0.1%
14tTorrent<0.1%
14aTorrent<0.1%
14PicoTorrent<0.1%

2015

Lifehacker, a software weblog, took a survey of 13,823 readers' preferred BitTorrent clients in May 2015. It showed that μTorrent still maintains a sizable lead over competitors, despite concerns over adware and bloatware. Runner-up Transmission was praised for being lightweight, while qBittorrent was praised for being cross-platform and open-source, Deluge for its plugin library, and Tixati for its simplicity. Vuze, another notable client, failed to make an appearance in the top five for the first time.

Poll data from: Lifehacker
RankApplicationPercentage of users' preferred clientsNumber of votes
1μTorrent42.47%5,870
2Transmission21.23%2,935
3qBittorrent18.75%2,592
4Deluge10.7%1,479
5Tixati6.85%947

2009

Delft University of Technology

A study by the Tribler P2P research team at the Delft University of Technology. To generate this data, samples were taken from a number of swarms of users which were then used to identify which BitTorrent client each user was using, this data was used by TorrentFreak in the table below:

Samples of Global BitTorrent Client Usage Share (Percent & Peers)
SourceDate & AgeμTorrentVuzeBitTorrent (mainline)BitCometTransmissionFlashGetUnknownTuotulibtorrentXunleiOtherSample Size
16 September 2011; 14 years ago(2011-09-16)47.97% 267,46622.49% 125,41713.01% 72,5361.01% 5,6387% 39,011?6.22% 34,703?1.02% 5,703?1.27% 7,062100% 557,536
4 December 2009; 16 years ago(2009-12-04)25.77% 92,086,03524.08% 86,055,3544.82% 17,207,5444.31% 15,403,4003.26% 11,637,1101.09% 3,882,6281% 3,590,5840.71% 2,531,4720.63% 2,251,73629.31% 104,717,3863.02% 10,806,362100% 357,301,730
18 October 2009; 16 years ago(2009-10-18)60.16% 10,36114.22% 2,4498.65% 1,4894.43% 7633.65% 628?7.97% 1,373?0.31% 530.02% 30.59% 102100% 17,221
14 August 2009; 16 years ago(2009-08-14)56.81%18.13%11.79%4.71%2.95%?4.21%???1.40%100% 165,000+
24 June 2009; 16 years ago(2009-06-24)55.84%16.85%12.01%6.50%1.60%?4.02%???3.17%100% 150,000+

2007

Digital Music News

Digital Music News collected the data from PC Pitstop, a company that gathers data from computers using their free online virus and malware scanners. The program scans Windows Registry to find which clients have been installed, more than a million Microsoft Windows computers were surveyed.

Global install rate
RankApplicationInstall % on Windows desktops
1LimeWire18%
2μTorrent5.56%
3BitTorrent (mainline)2.28%
4Vuze2.11%
5BitComet1.89%
6Bitlord1.27%