Lojbanic Software

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Runs on: 828.sip - Android, 804.sip - iPhone, 831.sip - Linux, 830.sip - Mac, 829.sip - Windows, Gnome-globe.svg - in browser or universally.

Learning Lojban

Sounds of Lojban

Flashcard Programs


  • Gnome-globe.svg vlasisku is an easy-to-use online Lojban <-> English dictionary. It is a convenient way to browse and search the definitions from the jbovlaste database.
  • Gnome-globe.svg The official Lojban live dictionary project jbovlaste contains complete or near-complete dictionaries for Russian, Spanish, Esperanto, and English, and the Lojban-in-Lojban dictionary is progressing rapidly.



Lujvo analysers

  • jvozba created by kamymecraijun
  • jvozba Implementation of jvozba in JavaScript; created by sozysozbot

Syntactic Parsers

Based on the official grammar

Based on experimental grammars

Semantic Parsers

  • Gnome-globe.svg (Haskell) la tersmu by Martin Bays. It translates lojban text to a predicate logic.
  • Gnome-globe.svg (Haskell) la cakyrespa by Yoshikuni Jujo. Run turtle like LOGO with lojban.
  • Gnome-globe.svg (Haskell) la lojysamban by Yoshikuni Jujo. Prolog with lojban.

Word lists


  • 831.sip 829.sip Colossal Cave. First, the text of this game was translated by Nick Nicholas in 1991. Robin Lee Powell has heroically translated that translation into a working game - see Colossal Cave for that, and also for the Inform Localisation files needed to create your own Lojbanic IF.
  • 829.sip Colour Bind is a physics platform-puzzler set in an abstract world where gravity is determined not by mass, but by colour. It features a full Lojban translation by Lindar. The game is available on Steam.
  • 831.sip 830.sip 829.sip Minecraft is a creative exploration game where you pick and place blocks to build worlds. A large group of contributors have created a community translation of Minecraft, which is included in Minecraft 1.9+. Unfortunately, it needs further translation on Minecraft's public translation website in order for it to be complete.
  • 831.sip 830.sip 829.sip Voxelands is yet another creative exploration game and comes with an official translation, although it might not be perfect yet. Everyone is welcome to improve it on [1].
  • Gnome-globe.svg 828.sip Town of Salem (Flash) is an online version of the Mafia party game; itself is only available in English and in Turkish. However, private party groups can be formed in order to communicate in the language players have agreed upon. The Android version is currently only available for tablets. Town of Salem related stuff is being translated in this public Google Spreadsheet and occasionally check out the Lojban Facebook group for any proposed private games.


  • 831.sip A vim filetype plugin for convenient word-list lookup, auto-lujvoification, and other useful things.
  • 831.sip Lojban-mode syntax highlighting and other support code for emacs
  • 831.sip jbofacki (backup) is a jbofihe/camxes CLI shell with Tab-completion of valsi and rafsi, colorized word lookups by literal name or string, etc. Intended for increased fun in exploring the construction of Lojban texts/sentences; also useful as a aid to memory (mi'e la kampu). Requires Python 2.5+, and currently also makfa-cli for generation + update of dictionary data.

Machine translation

  • Gnome-globe.svg zmifanva created by Masato Hagiwara, Lojban ↔ English Machine Translation Engine based on phrase-based statistical machine translation.
    • lojbo-tuhitsku created by youxkei. It obtains tweets, translates them into Lojban and tweets them. It calls Microsoft Translator for translation from Japanese to English, and zmifanva for English to Lojban.


Other software can be seen on the talk page.