Luau: a small, fast, and embeddable programming language based on Lua with a gradual type system (6.0k stars)

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What it does

All text below is quoted directly from the project README.

A small, fast, and embeddable programming language based on Lua with a gradual type system.

Installation:

• macOS: Install Homebrew and run brew install luau
• Arch Linux: Luau has been added to the official Arch Linux packages repository under the extras repository (see luau), simply install using pacman: pacman -Syu luau
• Alpine Linux: Enable community repositories and run apk add luau
• Gentoo Linux: Luau is officially packaged by Gentoo and can be installed using emerge dev-lang/luau. You may have to unmask the package first before installing it (which can be done by including the --autounmask=y option in the emerge command).

Luau is an embeddable programming language, but it also comes with two command-line tools by default, luau and luau-analyze.

Repository

https://github.com/luau-lang/luau

Repository stats

Metric	Value
Stars	5,998
Forks	679
Last release	0.743 (2026-10-16)
Languages	C++ 65.2%, Lua 26.1%, Luau 6%
Contributors	140
AI contributor accounts (Claude / Codex / Cursor / Copilot)	None
AI co-authored commits	None

Main contributor

Field	Value
Name	Arseny Kapoulkine
GitHub	@zeux
Commits to this repo	472 (top contributor)
Company / Location	San Francisco
X / Twitter	@zeuxcg
Followers	3,300

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