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Python

Python

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HTML & CSS

JavaScript

JavaScript

Java

Java

C++

C++

SQL

SQL

C

C

C#

C#

PHP

PHP

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Dart

Golang

Golang

R

R

Rust

Rust

Lua

Lua

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Ruby

Swift

Swift

AI Prompts

AI Prompts

Terminal

Terminal

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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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
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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
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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

Frequently asked questions

Is Coddy free?
Yes. Coddy is completely free to start. You can take dozens of interactive courses, build coding streaks, and earn XP without paying anything. We also offer an optional premium plan with extra features for learners who want more.
How long does it take to learn to code?
Most beginners can write useful code within 1–2 months of consistent daily practice. Reaching a job-ready level usually takes 6–12 months. With Coddy's gamified streaks and bite-sized lessons, you can make steady progress with as little as 15 minutes a day.
How hard is it to learn to code?
Coding is a learnable skill, not a talent. Most beginners feel lost in the first few weeks — that's normal. The trick is short daily practice instead of long weekend sessions. Coddy's bite-sized lessons and gamified streaks are built specifically to make sticking with it easy.
Where can I learn to code for free?
Right here on Coddy.tech. We offer free interactive courses across 15+ programming languages — Python, JavaScript, SQL, HTML, CSS, Java, C, Go, and more — taught through hands-on lessons with an in-browser code editor and an AI assistant that helps when you get stuck.
What programming language should I learn first?
For most beginners, Python is the easiest language to start with — it reads almost like English and is widely used in web development, data science, and AI. If web design is your goal, start with HTML, CSS, and JavaScript. Not sure which to pick? Our short onboarding questionnaire asks a few quick questions about what you want to build and recommends the right language for you — try it on the Get Started flow.
Can I get a certificate from Coddy?
Yes. Every course you complete on Coddy comes with a verifiable certificate. You can download it as a PDF and add it directly to your LinkedIn profile or résumé to showcase the skills you've earned.
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Learn to code with Coddy

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