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Speak Logically.

Lojban is a carefully constructed spoken language. It has been built for over 60 years by dozens of workers and hundreds of supporters.

Lojban's grammar is based on simple rules, and its linguistic features are inspired by predicate logic.

What's new in Lojban

  • May 10, 2025: lojban.io gets a new look! Check out the FAQ page and the Resources page to see the new, updated content!

  • April 13, 2025: LCC11 has concluded! This conference includes a track on loglangs, of which Lojban is a member. You can watch the planery section on loglangs (and hear Lojban being spoken) here. Check out LCC11's video playlist for more!

  • April 1, 2025: la nu farlu lo plini, a short story in Lojban, is featured in lipu tenpo, a magazine in Toki Pona! You can read the story here.

Courses

Decks