Learn to code for free
Together with 5,881,265 learners in 202 countries
Learn for a job, not just a language
Free roadmaps that put the courses in the order a mentor would teach them. Pick a goal and start with step one.
- A first language, learned properly
- Linux and the command line
- Git and version control
- SQL fundamentals
- Data structures, built by hand
- Algorithms and recursive thinking
- Code other people can read
Browse the full catalog
Every Coddy course in one place: interactive lessons across 20+ programming languages, runnable in your browser.
Earn a Certificate
Earn certificates for every course you complete. Add them to your LinkedIn profile and resume to showcase your coding expertise to employers.
Learn by Doing
Write real code, query databases, build websites, and master AI prompts. Our interactive lessons cover every skill modern developers need.
Build Your 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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Double or Nothing
Day 5 of 7
Streak Freeze
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Code Anywhere
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.
You're Not Alone
Compete on global leaderboards, invite friends to earn rewards, and celebrate each other's wins. Coding is better with friends!
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.
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.
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 to 2 months of consistent daily practice. Reaching a job-ready level usually takes 6 to 12 months. Our free roadmaps for software engineering, frontend, backend and data analysis lay out that road course by course. 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, and 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. We offer free interactive courses across 20+ programming languages (Python, JavaScript, SQL, HTML, CSS, Java, C, Go, and more), taught through hands-on lessons with an in-browser code editor and Bugsy, an AI tutor 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. Already have a job in mind? Pick a roadmap instead: it chooses the languages and their order for you. 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.