Tutorsbot

Online Lua Compiler

Lua is a fast, lightweight scripting language popular in game development and embedded systems. Run Lua code instantly in your browser.

main
-- Online Lua compiler
-- Write Lua 5.4 code in this online editor and run it

function greet(name)
    print("Hello, " .. name .. "!")
end

greet("Tutorsbot")

Lua is a fast, lightweight scripting language popular in game development and embedded systems. Run Lua code instantly in your browser.

What is Lua used for today?

Lua began at PUC-Rio in 1993 as a configuration language for petroleum-industry data files and grew into the most widely deployed scripting language in game engines. Roblox, World of Warcraft, CryEngine, Corona/Solar2D, and Defold all embed Lua for gameplay logic, and the standard nginx-flavour OpenResty uses Lua for request handlers. The whole interpreter starts in milliseconds and the reference implementation fits in well under one megabyte of RAM.

Why run Lua in your browser

Installing the Lua interpreter is trivial on Linux and macOS, but rare on Windows and absent from most browser-only environments. A browser sandbox lets you paste a snippet, see the output, and ship the example link to a colleague without anyone touching an installer. The Lua 5.4 reference we ship matches what most production game engines embed, so code you validate here will run there.

Common Lua tasks

Lua is everywhere scripting lives: game logic in Roblox and CryEngine, configuration DSLs in Redis (EVAL) and nginx (OpenResty), test harnesses for network protocols, and embedded scripting for native applications via the Lua C API (lua_pushfunction, lua_register). The sandbox runs Lua 5.4 and supports multi-line function definitions, table constructors, and metatables.

Getting started with Lua 5.4

Write a snippet — try print('hi, Tutorsbot') — and hit Run. stdout appears below the editor within a second. The syntax highlighter recognises Lua keywords (function, local, end, then), table literals, and string interpolation via ... For longer examples, the Hello World sample shows a complete function greet(name) definition.

Why use the Lua online compiler?

  • Lua 5.4 interpreter
  • Fast execution
  • Game development scripts
  • Embedding friendly

Frequently Asked Questions

Is the Lua online compiler free?
Yes — Tutorsbot's Lua compiler is completely free. No account required, no installation, and no usage limits.
Do I need to install Lua?
No. The Lua compiler runs entirely in your browser. No runtime, no SDK, no PATH configuration. Open the page and start coding.
Is my Lua code saved between sessions?
Yes — your code autosaves to your browser's local storage so you can resume where you left off. You can also generate a shareable URL.
Can I share Lua code with others?
Yes. Click the Share button to copy a URL that encodes your script. Anyone with the link can open and run it instantly — no account required on their end.
Is the Lua compiler safe to use?
Absolutely. Every program runs in an isolated sandbox. Your local system is never exposed to the executed code, and nothing is persisted after the execution window.