Is it free for schools and universities?
Yes. Every student creates a free account; there are no licences to buy.
Every student gets the same JDK, the same build setup and a real IDE in a browser tab — on a school laptop, a library PC, a Chromebook or a phone. Lessons start with code, not with installers.
public class Main {
public static void main(String[] args) {
for (int i = 1; i <= 15; i++) {
if (i % 15 == 0) System.out.print("FizzBuzz ");
else if (i % 3 == 0) System.out.print("Fizz ");
else if (i % 5 == 0) System.out.print("Buzz ");
else System.out.print(i + " ");
}
}
} Type psvm and press Tab to get the main method, then fori for the loop.
Built on the tools Java and Kotlin developers already trust
A free online Java and Kotlin IDE for classes, labs and homework. Works on school laptops and Chromebooks with no installs, any JDK from 8 to 27 and daily backups.
No JDK, no PATH, no IDE download and no administrator rights. A browser tab is the whole setup.
Pick any JDK from 8 to 27 per project, so assignments pinned to a version just work.
Maven, Gradle, JUnit 5 tests and a step debugger — the tools used at work, not a toy editor.
Projects are saved to the account and open on any computer, tablet or phone.
Local History keeps every save for 30 days, backups run daily and any project downloads as a .zip.
Each run happens in its own sandbox with no access to other projects and no internet access.
Start a project in seconds, get errors explained while you type and use Alt+Enter to fix them. When the output is wrong, set a breakpoint and step through the code instead of guessing.
Homework started on a school computer continues at home exactly where you left it.
Share starter code as a .zip archive that students upload into a new project; it is unpacked with its folders and build files. Everyone compiles with the same JDK and the same Maven or Gradle setup, so the first lesson is not spent on installs.
Accounts are personal and free. The Terms of Service require users to be at least 16 years old.
Yes. Every student creates a free account; there are no licences to buy.
Yes. It runs in a modern browser and needs no installation or administrator rights.
Yes. Users must be at least 16 years old, as set out in the Terms of Service.
Any project downloads as a .zip archive that can be submitted to a course system.
Open a tab and start coding
Free account, JDK 8–27, Maven, Gradle and Kotlin — nothing to install.
Create a free account