Instant messaging,



Please find a selection of software we have released.


This is the portable OTR Messaging Library, as well as the toolkit to help you forge messages. You need this library in order to use the other OTR software on this page.

[Note that some binary packages, particularly Windows, do not have a separate library package, but just include the library and toolkit in the packages below.]

The current version is 4.1.1.


UPGRADING from version 3.2.x

Source code (4.1.1)

Compressed tarball (sig)


This is a plugin for Pidgin 2.x which implements Off-the-Record Messaging over any IM network Pidgin supports.

The current version is 4.0.2.


Source code (4.0.2)

Compressed tarball (sig)

Windows (4.0.2)

Win32 installer for pidgin 2.x (sig)

Win32 zipfile (manual installation) for pidgin 2.x (sig)