Development with Claude Code
Claude Code from scratch, told as a story: websites, bots and games in practice.
specs for the agentcode reviewprojects
Start for freefrom scratch level 1 free 16 levels200+ tasks
2M+ graduates since 2012
16courses
10languages
3,000+ reviews
Programming courses
on the JavaRush platform
Interactive courses with practice from day one and instant code checks. Pick a language or a field: the first level of every course is free.
first level free, no card neededcourses from scratchlearn at your own pace
Field
Choose a course by field,
language or goal
Filter by field, look at the ready-made learning paths below or take the 2-question match. Level 1 of every course is free.
Java 25 Course
The world’s first Java 25 course, on the newest version of the language.
Virtual ThreadsPattern MatchingOOP
Start for freefrom scratch level 1 free 65 levels800+ tasks
Python Course
From the basics to bots, data analysis and automating routine work.
OOPbotsdata
Start for freefrom scratch level 1 free 64 levels800+ tasks
Web Course
From your first page to an interactive website you build yourself.
HTMLCSSJavaScript
Start for freefrom scratch level 1 free 48 levels500+ tasks
ChatGPT Apps Course
The world’s first production-ready course on AI-powered apps.
MCPAgents SDKACP
Start for freeexperience needed level 1 free 20 levels150+ tasks
Kotlin Course
A modern JVM language. 1,000+ tasks: practice on every level.
coroutinesnull safetyJVM
Start for freefrom scratch level 1 free 62 levels1,000+ tasks
C++ Course
Memory, multithreading, the C++20/23 standards. The most powerful language.
memorymultithreadingC++20
Start for freefrom scratch level 1 free 72 levels1,000+ tasks
Go Course
The language of the cloud and the backend: from CLI tools to HTTP services.
goroutinesRESTtests
Start for freefrom scratch level 1 free 72 levels1,000+ tasks
Swift Course
Development for the Apple ecosystem. Networking and concurrency.
async/awaitnetworkingApple
Start for freefrom scratch level 1 free 72 levels1,000+ tasks
Spring Foundation
The foundation of Spring: how a modern Java backend is built.
IoC/DISpring BootREST
Start for freeJava experience level 1 free part 1 of 3700+ tasks
Spring in Practice
You build a working REST service with a database and authentication.
REST APIPostgreSQLJWT
Start for freeJava experience level 1 free part 2 of 3800+ tasks
Spring in Production
You get a service ready for production: containers, caching, queues, tests.
DockerRedisTestcontainers
Start for freeJava experience level 1 free part 3 of 3700+ tasks
Docker
Linux and Docker in one course: you package and run applications in containers.
LinuxcontainersCompose
Start for freefrom scratch level 1 free 24 levels410+ tasks
C# Course
The core of .NET: from your first program to LINQ and async code.
.NETLINQasync
Start for freefrom scratch level 1 free 68 levels400+ tasks
SQL Course
Databases from scratch: you write queries and make them fast.
PostgreSQLJOINoptimisation
Start for freefrom scratch level 1 free 60 levels400+ tasks
Java Course
The legendary JavaRush course: your way to becoming a backend developer.
OOPCollectionsmultithreading
Start for freefrom scratch level 1 free 40+ levels1,200+ tasks
What to become
Learning paths: from zero to a profession
Thinking «what do I want to be» rather than «which course»?
Here are ready-made course sequences for a specific role.
The first level of every course is free.
Backend developer
The classic path into the Java backend: from the basics of the language to services in containers.
level 1 of every course free
Python developer
Python from scratch, working with databases and AI-powered apps.
level 1 of every course free
Fullstack developer
From frontend to backend: interfaces, server logic, databases and deployment.
level 1 of every course free
Not sure what to choose
Find a course in 2 questions
Answer a couple of questions and we’ll show you which course to start with. No sign-up.
What is your goal?
Comparison
Which programming language to choose
If you don’t know where to start, here is an honest comparison of popular languages: how hard they are to start, where they are used and who they suit.
| Python | Java | Go | Web (JS) | |
|---|---|---|---|---|
| Getting started | Easiest | Moderate | Moderate | Easy |
| Where it’s used | AI, data analysis, automation, bots | Backend, Android, large enterprise systems | Microservices, the cloud, high load | Websites, interfaces, frontend |
| Who it suits | Beginners and those who want quick results | Those aiming at a stable job market | Those who want a modern backend | Those who want to build websites and see results at once |
| Course | Python Course | Java Course | Go Course | Web Course |
Still have questions after the quiz?
If the quiz and the paths didn’t help you decide, write to us. We’ll tell you about the fields, help you pick a course for your goal and answer any question. No strings attached.
Katya
Customer care manager
How you learn
No watching videos: you write code from day one
Every course works the same way: short theory, practice in the browser straight away and an instant check. That is how a skill sticks and how courses get finished.
-
Practice from day one
A short lecture, then a task in the browser right away. WebIDE is already set up, there is nothing to install.
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Instant check
Hit «Check» and an AI mentor reviews your code, explaining at once what is wrong and how to fix it.
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Learn at your own pace
No schedule and no deadlines. Levels, tasks and visible progress keep you going where ordinary courses get dropped.
Reviews
What JavaRush students say
Real experience from different courses: some changed careers, others finally made it to the end.
3,000+ reviews96% of students recommend JavaRush
5 ★ 91%
4 ★ 7%
3 ★ 1%
2 ★ <1%
1 ★ <1%
5 out of 5
«I started from zero, with no technical background. A year later I moved into IT. Tasks and instant checks are what really teach you.»
Dmitry Roshchin
Java Course
5 out of 5
«I doubted I could manage it at 35. I did. The key is to solve tasks every day, and the check shows you at once where you went wrong.»
Igor Tikhomirov
Java Course
5 out of 5
«I never thought databases could be interesting. Here it is all practice: you write queries straight away and see the result.»
Natalia Vishnevskaya
SQL Course
5 out of 5
«I study in the evenings after work. The task format really keeps me going: in six months I covered more than in a year of video courses.»
Svetlana Pogodina
Python Course
5 out of 5
«I had tried to learn programming three times and given up. Here I finished for the first time. Practice with checks keeps you from getting stuck.»
Anna Kovalchuk
Python Course
4 out of 5
«The format draws you in: you solve a task, see your progress and move on. At times I wanted more theory, but there is plenty of practice.»
Marina Solovey
Web Course
4 out of 5
«I came for a modern backend. Microservices are taken apart on real examples. At times I wanted to go deeper, but it is great for a start.»
Artyom Kaverin
Go Course
Programming in 2026
The best time to get into development is now
We are at the start of the biggest technology shift since the internet. AI does not do away with programmers, it raises the bar: next-generation products are built by people who understand deeply how technology works and can work with AI agents. Such specialists are in short supply everywhere, and they are paid accordingly. Below is what developers actually earn by region and field, with links to the sources.
+15% more developer jobs in the USA by 2034, almost 4 times faster than the market U.S. Bureau of Labor Statistics
+62% higher pay for specialists with AI skills PwC AI Jobs Barometer, 2026
109,000 open IT jobs in Germany alone: companies relocate engineers to fill them Bitkom, 2025
How much developers earn
median, USD per month before tax| Field | Junior | Middle | Senior |
|---|---|---|---|
| Java | $8,200 | $10,000 | $15,500 |
| Python | $8,950 | $10,900 | $16,900 |
| Web/Frontend | $8,500 | $10,350 | $16,050 |
| Go | $9,600 | $11,700 | $18,150 |
| Kotlin/Android | $9,900 | $12,050 | $18,700 |
| C#/.NET | $9,950 | $12,150 | $18,850 |
| C++ | $8,550 | $10,400 | $16,150 |
| Swift/iOS | $9,900 | $12,050 | $18,700 |
| DevOps | $9,950 | $12,100 | $18,800 |
| SQL/Data | $8,850 | $10,800 | $16,750 |
In the USA, a Middle developer earns $10,000–12,150 a month depending on the field, a Junior starts at $8,200, and a Senior reaches $18,850; C#/.NET pays best. Data: Glassdoor, BLS, September 2026.
| Field | Junior | Middle | Senior |
|---|---|---|---|
| Java | $4,550 | $6,500 | $9,000 |
| Python | $4,800 | $6,800 | $9,250 |
| Web/Frontend | $4,600 | $6,300 | $8,600 |
| Go | $5,350 | $7,400 | $9,750 |
| Kotlin/Android | $5,650 | $7,300 | $9,750 |
| C#/.NET | $4,550 | $6,400 | $8,800 |
| C++ | $4,550 | $6,650 | $9,150 |
| Swift/iOS | $5,350 | $7,900 | $10,800 |
| DevOps | $5,000 | $7,050 | $9,650 |
| SQL/Data | $4,000 | $5,900 | $8,650 |
In Western Europe (the UK, Germany, the Netherlands), a Middle developer earns $5,900–7,900 a month depending on the field, a Junior starts at $4,000, and a Senior reaches $10,800; Swift/iOS pays best. Data: ITJobsWatch, Glassdoor, StepStone, September 2026.
| Field | Junior | Middle | Senior |
|---|---|---|---|
| Java | $2,300 | $3,800 | $5,300 |
| Python | $2,400 | $4,000 | $5,550 |
| Web/Frontend | $2,300 | $3,650 | $5,100 |
| Go | $2,700 | $4,600 | $6,200 |
| Kotlin/Android | $2,400 | $4,000 | $5,400 |
| C#/.NET | $2,150 | $3,550 | $4,900 |
| C++ | $2,200 | $3,550 | $5,000 |
| Swift/iOS | $2,400 | $4,000 | $5,400 |
| DevOps | $2,450 | $4,000 | $5,550 |
| SQL/Data | $2,250 | $3,650 | $5,150 |
In Eastern Europe (Poland, Czechia, Estonia, Romania), a Middle developer earns $3,550–4,600 a month depending on the field, a Junior starts at $2,150, and a Senior reaches $6,200; Go pays best. Data: Just Join IT, Levels.fyi, September 2026.
| Field | Junior | Middle | Senior |
|---|---|---|---|
| Java | $850 | $1,700 | $2,650 |
| Python | $900 | $1,800 | $2,800 |
| Web/Frontend | $750 | $1,500 | $2,350 |
| Go | $950 | $1,900 | $2,950 |
| Kotlin/Android | $800 | $1,650 | $2,600 |
| C#/.NET | $800 | $1,550 | $2,450 |
| C++ | $800 | $1,550 | $2,450 |
| Swift/iOS | $900 | $1,800 | $2,850 |
| DevOps | $800 | $1,550 | $2,450 |
| SQL/Data | $850 | $1,700 | $2,700 |
In Kazakhstan, a Middle developer earns $1,500–1,900 a month depending on the field, a Junior starts at $750, and a Senior reaches $2,950; Go pays best; at foreign companies working remotely, 2–3 times more. Data: Taylor.kz, Kolesa Group, September 2026.
| Field | Junior | Middle | Senior |
|---|---|---|---|
| Java | $5,000 | $6,050 | $7,250 |
| Python | $4,950 | $6,050 | $7,200 |
| Web/Frontend | $4,950 | $5,950 | $7,100 |
| Go | $5,000 | $6,050 | $7,200 |
| Kotlin/Android | $5,000 | $6,050 | $7,250 |
| C#/.NET | $5,000 | $6,050 | $7,200 |
| C++ | $5,000 | $6,050 | $7,200 |
| Swift/iOS | $5,000 | $6,050 | $7,250 |
| DevOps | $5,950 | $7,150 | $8,600 |
| SQL/Data | $5,000 | $6,050 | $7,200 |
On the global remote market, a Middle developer earns $5,950–7,150 a month depending on the field, a Junior starts at $4,950, and a Senior reaches $8,600; DevOps pays best. Data: Arc.dev, September 2026.
Developers with AI skills earn on average 62% more, in any region and in any language.
AI Native DeveloperSources: BLS, Glassdoor, Stack Overflow Survey 2025 · Data updated: September 2026
Sources: ITJobsWatch (UK), Glassdoor (DE, NL), StepStone · Data updated: September 2026
Sources: Just Join IT Salary Report 2026 (PL), Levels.fyi (CZ, EE), Glassdoor · Data updated: September 2026
Sources: Taylor.kz, Kolesa Group, Astana Hub · Data updated: September 2026
Sources: Arc.dev Remote Salary 2026, Stack Overflow Survey 2025 · Data updated: September 2026
Where next
Choose a language or a way to learn
Start with any course: the first level is free. Or choose a format with a mentor and help finding a job.
Popular courses by language:
Frequently asked questions
Questions about JavaRush courses
The first level of every course is free and needs no card: you take the lectures and solve the first tasks to see how it works. After that, learning continues with a subscription. It is an honest free start, not a trial that charges you automatically.
It is a proper course with lectures, tasks and tests, just with game mechanics (levels, progress, achievements) that help you not to give up. You really learn and write real code, while the gamification keeps you motivated to the end.
You don’t watch hours of video: from day one you write code right in the browser. After a short bit of theory comes a task with an instant check by an AI mentor. Maximum practice, minimum passive watching: that is how a skill sticks faster.
The «from scratch» courses (Java, Python, C++, Go and others) need no experience, just basic computer skills. Courses such as Spring are for those who already know Java. The level is shown on every course card.
The first level is free, after that it is by subscription. See current plans and payment methods on the pricing page. You can cancel at any time, and your progress is kept.
Programmers are made, not born
Not sure which course to start with? Answer 2 questions and we’ll show you yours.
Or browse the whole list and choose yourself.
First level free, no card needed 2M+ already learning on JavaRush