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Initial release 2001 (2001)
Stable release 3.1.5 (March 22, 2014 (2014-03-22)[1])
Preview release none
Written in OCaml, with some C and assembly
Operating system Windows, OS X, Unix-like, MorphOS
Type P2P File sharing
License GPL
Website .net.sourceforgemldonkey

MLDonkey is an open source, multi-protocol, peer-to-peer file sharing application that runs as a back-end server application on many platforms. It can be controlled through a user interface provided by one of many separate front-ends, including a Web interface, telnet interface and over a dozen native client programs.

Originally a Linux client for the eDonkey protocol, it now runs on many flavors of Unix-like, Mac OS X, Windows and MorphOS and supports numerous peer-to-peer protocols.

It is written in OCaml, with some C and some assembly.


  • History 1
  • Features 2
  • See also 3
  • References 4
  • Frontends 5
  • External links 6


Development of the software began in late 2001. The original developer of MLDonkey is Fabrice Le Fessant from INRIA. It was originally conceived as an effort to spread the use of OCaml in the open source community.[2]

In January 2003, reported brief friction between MLDonkey developers and the official Overnet MetaMachine developers, which denounced MLDonkey as a "rogue client", allegedly for incorrect behavior on the network.[3]

Versions before 3.0 have a known security vulnerability that allows an attacker with access to the web interface to read any file on the file system.[4]


Features of MLdonkey core:

Written in the OCaml programming language and licensed under the GPL, the application separates the user interface (which can be a web browser, telnet, or a third-party GUI application) and the code that interacts with the peer-to-peer networks.

MLDonkey is able to connect simultaneously to different peers using different network protocols. In addition it can download and merge parts of one file from different network protocols[5] although this feature is currently documented as experimental. MLDonkey runs in a terminal session and does not require a GUI environment, saving memory and processing resources. Behavior is controlled by editable configuration files, or—in a more user friendly fashion—from a separate user interface.

From release 2.9.0 on, support for gnutella and G2 are no longer compiled in by default as both plugins are buggy and currently unmaintained; however, it is still possible to compile them in by making the appropriate setting in the configuration file.[6]

See also


  1. ^ "MLDonkey at". MLDonkey. 
  2. ^ Fabrice Le Fessant; MLdonkey, a Multi-Network Peer-to-Peer File-Sharing Program
  3. ^ Thomas Mennecke, Rogue Clients and Overnet, January 17, 2003
  4. ^ DJ Walker-Morgan, MLDonkey 3.0 closes security hole, H-online, 16 March 2009
  5. ^ Latest cores (above 2.5.28) contain an experimental feature: swarming between networks
  6. ^ MLDonkey will no longer compile in Gnutella and G2 support by default

General references

  • (Polish) Andrzej Kwaśniewski (November 18, 2005) P2P pod Linuksem (P2P in Linux), PC World Poland


  • P2P-GUI (web interface)
  • Onager (Palm OS)
  • Sancho
  • MuleDroid - Interface Android

External links

  • Official homepage
  • Bug tracker
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