Off-the-Record Messaging

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OTR-Enabled Software

OS Distributions which ship with OTR software

• Linux
  • Gentoo
  • Debian
    • Debian stable (etch)
    • Debian testing (lenny)
    • Debian unstable (sid)
  • Ubuntu
    • Ubuntu Dapper
    • Ubuntu Feisty
    • Ubuntu Gutsy
    • Ubuntu Hardy
    • Ubuntu Intrepid
  • T2
  • Fedora, Red Hat Enterprise Linux, CentOS
• BSD
  • FreeBSD
  • NetBSD
  • OpenBSD current
  • OpenBSD 4.4

IM clients which support Off-the-Record Messaging "out of the box"

• Adium
• IM+, a multi-protocol IM client for Android
• climm
• mcabber
• CenterIM
• Kopete
• Emerald Viewer, a Second Life Client (reportedly defunct)
• Gibberbot, an XMPP client for Android
• Jitsi

Third-party plugins for IM clients

• OTR plugin for pidgin^*
• OTR plugin for Miranda
• a newer OTR plugin for Miranda
• OTR plugin for Trillian
• OTR plugin for irssi, xchat, and weechat
• OTR plugin for weechat
• OTR plugin for Psi
  You can also try these links for Psi/Psi+:
  • OTR Plugin for Psi+
  • Ubuntu Psi+ with OTR
    sudo apt-add-repository ppa:psi-plus/ppa
    sudo apt-get install psi-plus

Libraries that support OTR

• libotr (a C library)^*
• Python bindings to libotr
• A native Python implementation of OTR
• A native Scheme implementation of OTR
• A native Javascript implementation of OTR
• A native Go implementation of OTR
• A native Java (SE) implementation of OTR
• A native Java (ME) implementation of OTR^*

^* Software developed by the OTR Development Team

Ian Goldberg and the OTR Development Team [GPG release signing key]