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Learn Lua

A free, interactive online Lua course. You write Lua on every lesson, with AI hints when something nils out, and a free certificate when you finish.

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View syllabusLua playground

68,940+ codders enrolled

214 lessons168 challenges1,069 quiz questions

  • Beginner friendly
  • sparkles iconAI-assisted coding help
  • hint iconHands-on interactive lessons
  • volume On iconAudio narration on every lesson
  • quiz iconQuizzes to test your knowledge
  • certificate iconFree certificate of completion

Syllabus

3 sections6 projects214 lessons168 challenges1,069 quiz questions
  1. Section 1

    Fundamentals

    Start sectionStartExpandCollapse    The first section in Lua for absolute beginners.90 lessons74 challenges472 questions2 projects

    Introduction

    3 lessons316

    Variables and Data Types

    8 lessons754

    Operators 1 Arithmetic & Conc

    6 lessons635

    Operators 2 Relational & Logic

    8 lessons651

    Basic Output

    9 lessons954

    Project: Character Stats Disp

    Project5 lessons1

    Basic Conditional Logic

    4 lessons423

    String Manipulation Basics

    6 lessons637

    Functions Basics

    6 lessons636

    Tables Part 1: List-Style

    8 lessons752

    Tables 2: Dictionary-Style

    7 lessons648

    Loops Basics

    6 lessons636

    Project: Simple Potion Shop

    Project6 lessons1

    Variable Scope

    5 lessons330

    Final Challenges

    3 lessons3
  2. Section 2

    Logic & Flow

    Start sectionStartExpandCollapse    Develop problem-solving skills and create dynamic, interactive programs54 lessons36 challenges244 questions2 projects

    Advanced Table Iteration

    4 lessons423

    More Table Library Functions

    5 lessons430

    Advanced Function Concepts

    6 lessons539

    Introduction to Metatables

    8 lessons757

    Project: Text Adventure Engine

    Project8 lessons1

    Error Handling

    3 lessons216

    Advanced String Manipulation

    6 lessons641

    Project: Contact List

    Project7 lessons1

    Coroutines for Beginners

    7 lessons638
  3. Section 3

    Object Oriented Programming

    Start sectionStartExpandCollapse    Discover how to organize code with classes, objects, and reusable structures70 lessons58 challenges353 questions2 projects

    The 'Self' Concept

    5 lessons532

    Class Prototype Pattern

    6 lessons641

    Object State and Behavior

    7 lessons748

    Project: Digital Bank

    Project7 lessons1

    Operator Overloading in OOP

    5 lessons531

    Inheritance Basics

    6 lessons643

    Polymorphism & Overriding

    6 lessons640

    Encapsulation

    6 lessons644

    Composition & Mixins

    6 lessons642

    Project: Shape Manager

    Project7 lessons1

    Design Patterns (Lite)

    5 lessons532

    Final Challenges

    4 lessons4

Lua courses

Hands-on Lua courses, free to start in your browser.

Interview PreparationData StructuresGraph Algorithms Courses

Beginner Challenges - Practice Basic Concepts

Popular

Put your beginner coding knowledge to test and try to solve this programming challenges, use any language you want, Happy Coding!

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Certificate on completion

  • 20
  • 20

Coding Problems

Popular

Put your programming problem solving skills to the test using the exercises with different difficulties in this course. Designed for coders with some prior knowledge of the basic syntax in any programming language.

certificate icon

Certificate on completion

  • 32
  • 31

Stack - Data Structures Series #1

In this course, you will learn about the Stack data structure, create a Stack from zero using your preferred language, and practice coding challenges with it!

Data Structures
  • 13
  • 6
  • 1

Coding Problems: Volume 2

Put your programming problem solving skills to the test using the exercises with different difficulties in this course. Designed for coders with some prior knowledge of the basic syntax in any programming language. This course is an extension of the first Coding Problems

certificate icon

Certificate on completion

  • 25
  • 24

Hash Tables - Data Structures Series #4

In this course, you will learn about the Hash Table data structure, create a Hash Table from zero using your preferred language, and practice coding challenges with it!

Data Structures
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Certificate on completion

  • 14
  • 12

Linked List - Data Structures Series #5

In this course, you will learn about the Linked List data structure, create a Linked List from zero using your preferred language, and practice coding challenges with it!

Data Structures
certificate icon

Certificate on completion

  • 14
  • 6
  • 1
See all 43 Lua courses →
What you get
Everything you'll use to learn to code

Learn by Doing

Write real code, query databases, build websites, and master AI prompts. Our interactive lessons cover every skill modern developers need.

playground.js
Code Editor
1const greeting = "Hello, Coddy!"
2function sayHi(name) {
3    return greeting + " " + name
4}
5
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Test #3test Case Failure icon
Input
"Alex"
Output
"Hello, Coddy! Alex"

Build Your Coding Streak

Stay consistent and watch your progress grow! Track your daily coding habit, protect your streak with freeze days, and earn rewards for showing up every day.

12 days streak

Return tomorrow to keep your streak!

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January 2026

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Double or Nothing

Day 5 of 7

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Streak Freeze

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Code Anywhere, Anytime

Take your coding journey on the go! No setup, no downloads - just open and start coding. Available on iOS, Android and Web with 4.9 star ratings.

Python
7Streak
250Score
5Energy
Variables
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CONTINUE
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Journey
Goals
Leaderboard
Profile
4.9
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Rating

You're Not Alone in This

Compete on global leaderboards, invite friends to earn rewards, and celebrate each other's wins. Coding is better with friends!

Challenger League
Challenger LeagueTop 7 advance
leaderboard First icon1
avatar 1 icon
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Alex7+ Days
2840
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Jordan7+ Days
2650
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Sam7+ Days
2420
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Casey
2180
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Morgan7+ Days
1950
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Every way to learn

Read, listen, test yourself, ask the AI, or look up anything you've already covered. Every lesson meets you where you are.

Intro to Variables
Audio

A variable is a named container that stores a value you can reference later in your program.

In Python, you create one by writing the name, an equals sign, then the value you want to store.

The value can change over time - reassigning the name simply points it to a new value.

1xSarah

Prove Your Skills

Earn certificates for every course you complete. Add them to your LinkedIn profile and resume to showcase your coding expertise to employers.

CoddyCertificate of Completion
This certifies thatJohn Doehas successfully completed
PythonPython Fundamentals
Verified
DateJan 2026
LinkedInAdd to LinkedIn

Why learn Lua with Coddy

  • Run real Lua code in your browser. No Lua interpreter to install, no toolchain setup. Each lesson runs your Lua script server-side and shows the output instantly.
  • Lua as it's actually used: variables, control flow, functions, tables (Lua's one true data structure), string manipulation, metatables and OOP patterns, error handling. The Lua foundations you need for Roblox, Love2D, or embedded scripting.
  • AI hints help you debug Lua scripts and read errors without spoiling the answer, so common stumbles like nil indexing and 1-based arrays become learning moments.
  • Free Lua certificate when you finish the course. A credible signal alongside Roblox games, mods, or embedded scripting projects you've built.

Frequently asked questions about learning Lua

What is Lua used for?

Lua is mainly used as an embedded scripting language inside larger applications, especially game engines. Roblox scripting (Luau is a Roblox-specific dialect of Lua), Love2D, World of Warcraft addons, Defold, and Garry's Mod all use Lua. Outside games, Lua is also used for configuration, automation, and embedded systems.

Is Lua easy to learn?

Lua is one of the smaller, simpler programming languages - the entire reference manual fits in a short PDF, and there's basically one main data structure (the table). Most beginners reach their first working Lua program within the first hour. The trickier parts (metatables, closures, coroutines) come later and are introduced gradually.

Should I learn Lua for Roblox?

Yes. Lua (specifically the Luau dialect Roblox uses) is the only scripting language for Roblox games. The Lua course covers the same core language Luau is based on (variables, tables, functions, metatables, OOP patterns), so finishing it gives you a real head start on Roblox scripting.

How long does it take to learn Lua?

Lua basics - variables, conditionals, loops, functions, tables - take one to two weeks of daily practice. Becoming comfortable with metatables, closures, and OOP-in-Lua patterns usually takes another two to four weeks. From there, applying Lua inside Roblox or another game engine is its own learning curve on top of the language.

Can I learn Lua online for free?

Yes. The interactive Lua course is free - lessons, coding exercises, quizzes, and a certificate. Lua runs server-side, so you don't need to install Lua or any game engine locally to start writing code.

Do I get a certificate after the Lua course?

Yes. Finishing the Lua course gives you a free certificate of completion you can add to your resume or share on LinkedIn alongside any Roblox games, mods, or scripting projects you've built.
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Learn Lua with Coddy

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