Fresh data on the market share of BitTorrent clients shows that uTorrent remains the client of choice for over 60% of all BitTorrent users. Vuze is in second place, but its market share has dropped to 14%. Transmission, on the other hand, continues to gain ground, with the client’s market share increasing by 23% in the last two months.

BitTorrent is by far the leading file-sharing technology, with millions of people using the protocol every day. Every two months we take a look at the market share of various BitTorrent clients to see if there are interesting trends emerging.

Today’s report is based on data from over 17,221 unique users in a few dozen public BitTorrent swarms, collected by the Tribler P2P research team at Delft University of Technology.

The results in the table below show the market share for each individual client. In common with our previous reports, only 5 clients reached the 1% threshold, the remaining 14 that were encountered are grouped in the ‘other’ category. Some clients were not identified by libTorrent (rakshasa) and those ended up in the unknown ‘category’.

The changes in market share compared to our September report are also included, and these show some interesting trends. First of all, uTorrent extended its user base and now has a massive 60 percent market share. Vuze, BitComet and BitTorrent’s Mainline client all lost market share.

Transmission, on the other hand, keeps on growing. Its market share increased 23 percent and might take over BitComet’s fourth place soon. More on this in our December report.