Java BitTorrent library

Question

Are there any decent BitTorrent libraries for Java? I need to program a simple torrent client, but it would be great if I didn't have to write everything from scratch.

score 32 · Answer 1 · edited Dec 18 '13 at 07:16

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Turn's TTorrent is a pure Java bit torrent library.

edited Dec 18 '13 at 07:16

chamakits

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answered Jun 11 '12 at 08:27

leonm

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[Etsy uses ttorrent](http://codeascraft.com/2012/01/23/solr-bittorrent-index-replication/) for Solr index replication. – Ryan May 29 '13 at 21:36
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As of 2017 it's for the most part abandoned and unmaintained. For everyone interested in Java BitTorrent I'd suggest checking out Bt, a modern Java 8 BitTorrent library: https://github.com/atomashpolskiy/bt . It includes: PEX, magnet links, DHT, message stream encryption, extended protocol. As a bonus it has clear and concise API and JavaDoc and, being built with Guice DI, provides vast possibilities for extension/customization. – Andrei Tomashpolskiy Jul 26 '17 at 14:21
There are important nuances that need to know. Ttorrent - does not support DHT. BT library - supported, only Android 8+ – Master Mar 28 '20 at 19:23

score 23 · Accepted Answer · edited Jun 22 '14 at 03:55

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Snark by Three Rings is a very lightweight bitorrent library that will give you basic torrent features.

Was originally written by Mark Wielaard. A github source can be found here https://github.com/akerigan/born-again-snark

edited Jun 22 '14 at 03:55

Community

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answered Jun 03 '09 at 12:48

jjnguy

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"Snark is released under the GPL" (!) – Tim Dec 12 '09 at 15:22
@uckel, fixed the link. Thanks. The project must have moved. – jjnguy Oct 16 '10 at 14:59
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Link works now. But the links on the linked page are broken. – Robert Jul 13 '12 at 02:27
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Links within project page still broken as of today. – chamakits Dec 18 '13 at 07:07
Link to snark is broken again – Ferrybig Aug 11 '17 at 12:21

score 6 · Answer 3 · edited Feb 04 '16 at 08:17

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I have created a Bitlet Fork on Github.

It's LGPLed, and it's running faster than ttorent.

edited Feb 04 '16 at 08:17

Eric Platon

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answered Aug 24 '12 at 09:38

Toilal

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Looks like bitlet made it onto github themselves in the end https://github.com/bitletorg/bitlet – Tim Abell Jan 02 '15 at 21:51

score 4 · Answer 4 · edited Jan 02 '15 at 21:54

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Azureus (now named Vuze) gives you a plugin API. Using this API you can plug your code into Azureus. Start it inside your program, and listen/respond to its events.

edited Jan 02 '15 at 21:54

Tim Abell

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answered Dec 12 '09 at 15:16

Anonymous

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score 3 · Answer 5 · answered Jun 03 '09 at 13:04

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Azureus is written in Java - is most likely not "simple" but quite likely "decent" :)

answered Jun 03 '09 at 13:04

Thorbjørn Ravn Andersen

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But is it a library - does it offer APIs that you can easily use in your own programs? – Jonik Jun 03 '09 at 13:37

score 1 · Answer 6 · answered Jan 13 '12 at 10:39

Adding to answer from jjnguy : The code seems to be at http://code.google.com/p/snark/ and not in the repo pointed to in the link you've provided.

I've not used it, but a Google search showed up YAIRCC. Describes itself as "A lightweight Java Bittorrent library and client".

score -1 · Answer 7 · answered May 31 '11 at 08:37

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Transdroid and Transdroid-desktop are libraries for adroid, that can also be used in java to control existing torrent clients.

answered May 31 '11 at 08:37

Mateu

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Java BitTorrent library

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