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Learn Dart

A free, interactive online Dart course. You write Dart on every lesson, with AI hints when async gets weird, and a free certificate when you finish.

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View syllabusDart playground

20,761+ codders enrolled

269 lessons241 challenges1,689 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 sections4 projects269 lessons241 challenges1,689 quiz questions
  1. Section 1

    Fundamentals

    Start sectionStartExpandCollapse    Build a strong foundation with essential concepts and basic skills94 lessons85 challenges574 questions1 project

    Introduction to Dart

    4 lessons324

    Variables and Basic Data Types

    11 lessons1075

    Operators Part 1

    6 lessons638

    Operators Part 2

    6 lessons636

    Operators Part 3

    3 lessons320

    Control Flow - Decision Making

    6 lessons636

    Working with Strings

    5 lessons538

    Control Flow - Loops

    6 lessons637

    Collections - Lists Basics

    8 lessons759

    Collections - Maps Basics

    8 lessons757

    Functions Basics

    8 lessons753

    Functions Advanced

    5 lessons532

    Null Safety In Depth

    6 lessons639

    Type Conversion

    4 lessons430

    Project: Simple Calculator

    Project5 lessons1

    Fundamentals Challenges

    3 lessons3
  2. Section 2

    Logic & Flow

    Start sectionStartExpandCollapse    Master advanced Dart programming with a focus on data structures and flow control. Learn to work with complex arrays, collections, error handling, and time management.65 lessons51 challenges342 questions2 projects

    Advanced List Manipulation

    9 lessons959

    Functional List Operations

    7 lessons746

    Sets

    9 lessons864

    Advanced Map Manipulation

    7 lessons745

    Project: Shopping Cart Calc

    Project5 lessons1

    Basic Error Handling

    6 lessons541

    Advanced Functions

    7 lessons646

    Project: Simple Text Analyzer

    Project7 lessons18

    Enumerations (Enums)

    5 lessons433

    Final Challenges

    3 lessons3
  3. Section 3

    Object Oriented Programming

    Start sectionStartExpandCollapse    Discover how to organize code with classes, objects, and reusable structures110 lessons105 challenges773 questions1 project

    Fundamentals of OOP

    9 lessons971

    Constructors in Dart

    7 lessons753

    Class Properties

    6 lessons644

    Null Safety

    7 lessons754

    Encapsulation

    6 lessons641

    Inheritance

    7 lessons750

    Abstract Classes & Interfaces

    7 lessons753

    Mixins

    7 lessons752

    Polymorphism

    6 lessons643

    Collections & Generics

    7 lessons754

    Special Methods

    6 lessons643

    Async OOP

    6 lessons645

    Advanced OOP Concepts

    7 lessons764

    Design Patterns Part 1

    5 lessons543

    Design Patterns Part 2

    7 lessons763

    Project: Library Management

    Project6 lessons1

    Final Challenges

    4 lessons4

Dart courses

Hands-on Dart 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.

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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 Dart 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 #1test Case Success icon
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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
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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 Dart with Coddy

  • Write and run real Dart code in your browser. No Dart SDK install, no Flutter toolchain setup. Each lesson compiles your Dart program server-side and shows the output instantly.
  • Dart as Flutter developers actually use it: variables and types, control flow, functions, classes and inheritance, generics, null-safety, futures, async/await, streams. The Dart foundations every Flutter developer needs.
  • AI hints help you read and fix Dart errors and async bugs without spoiling the answer, so concepts like null-safety and futures click instead of confusing you.
  • Free Dart certificate when you finish the course. A credible signal for Flutter and mobile-development roles where Dart is the primary language.

Frequently asked questions about learning Dart

What is Dart programming used for?

Dart is mainly used to build Flutter apps - Google's cross-platform UI framework that targets iOS, Android, web, Windows, macOS, and Linux from a single codebase. Outside Flutter, Dart is also used for command-line tools and server-side code, but the dominant reason people learn Dart today is Flutter.

Is Dart hard to learn?

Dart is one of the easier statically-typed languages to pick up. The syntax is familiar to anyone who's seen Java, JavaScript, or C#, and it has strong null-safety to prevent common bugs. Most beginners reach their first working Dart program in the first hour and start writing classes within a week.

Should I learn Dart before Flutter?

Yes - at least the basics. You'll move much faster through Flutter once Dart syntax, classes, async/await, and null-safety feel natural. The Dart course is built specifically as a runway into Flutter, so you cover the parts of Dart that show up in real Flutter code.

How long does it take to learn Dart?

Dart basics - variables, control flow, functions, classes - take one to two weeks of daily practice. Becoming comfortable with async/await, futures, and null-safety usually takes another two to four weeks. From there, you can move into Flutter while still picking up advanced Dart features as you need them.

Can I learn Dart online for free?

Yes. The interactive Dart course is free - lessons, coding exercises, quizzes, and a certificate. Dart compiles server-side, so you don't need to install the Dart SDK or set up Flutter locally to start writing real Dart code.

Do I get a certificate after the Dart course?

Yes. Finishing the Dart course gives you a free certificate of completion. A verifiable proof point you can add to your resume or share on LinkedIn, especially useful as a stepping stone toward Flutter development.
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Learn Dart with Coddy

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