Compile and Run Java Online

Codiva is an online compiler and IDE for Java.
  • Online compiler. No installation needed
  • Starts in less than a second
  • Compiles as you type
  • Auto complete makes coding fun
  • Online console for interactive user input
  • Works even on mobile
  • Try now! Because it saves you time

Start coding now

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Codiva screenshot with online compiler and autocomplete on both desktop and mobile browsers

We have been using for the bulk of this semester. It is our first foray into online IDE's and I have investigated each one at length. provides the best balance on speed and functionality and has become our default IDE.

R Jones, AP Computer Science Teacher
Early High School, Texas, USA

It allows you to write real code in Java and run it right in your browser. Everything works quickly and reliably. I've been looking for this solution for a long time and found that the is the best option.

Igor Dolgov. Founder of Khasang.
Taught Java to over 10,000 students
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