You've reached the website of Lus, a small, fast, and reliable programming language that is sovereign. Check out the manual to learn more about the language and how to get started.
Write and run Lus code directly in your browser.
Read the language manual and API reference.
Released on 2026-03-06. This is the latest stable release of Lus and is recommended for most users.
Released on 2026-03-07. These builds are available for testing and previewing new features.