luau-lang/luau

Health v2 · maintenance only

Adoption not part of the score

6009 stars · 680 forks observed · 2026-10-21

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Luau is a fast, small, gradually typed scripting language derived from Lua 5.1, designed to be embedded in applications with a sandboxed runtime and Lua-compatible C API. It ships with a REPL/runner CLI and a static analysis tool (luau-analyze) for type checking and linting.

Use cases

• embed a scripting language in a game or application
• write typed Lua scripts with type inference
• run untrusted user scripts safely in a sandbox
• lint and type-check Lua-like codebases
• script Roblox game logic
• replace Lua 5.1 with a faster, safer runtime

When to choose

• you need an embeddable, sandboxed scripting language with gradual typing
• you want Lua 5.1 compatibility with better performance and type safety
• you are building Roblox experiences or games adopting Luau

When to avoid

• you need a general-purpose standalone systems language
• you require full compatibility with newer Lua versions like 5.4
• you need a large standard library out of the box

Facets

library · maturity active

programming-language interpreter compiler linter type-system programming-languages developer-tools cpp cross-platform cli lua scripting-language gradual-typing embeddable roblox type-inference sandboxing game-development

Member repositories

For agents

markdown · JSON · MCP: product_card(name="luau-lang/luau")