Category Archives: Tools

kapt: Annotation Processing for Kotlin

This post is largely outdated. Please refer to the kapt documentation. As there have been many requests to support Java Annotation Processing, we are working on it, and first results are ready for preview. This is the call for early … Continue reading

Posted in Android, Tools | 21 Comments

Try Kotlin in Your Browser: New Look and More Features

We released Kotlin Web Demo quite a while ago, it did a good job helping people try Kotlin right in the browser and share runnable code with each other. Now, a shiny new version is ready, it’s time to retire … Continue reading

Posted in Tools | 16 Comments

Eclipse Plugin Alpha is Out!

Kotlin support in IntelliJ IDEA has always been among our top priorities, but we have been working on Eclipse support as well, and today we are happy to present the first alpha result of this effort. Although it’s only a … Continue reading

Posted in Tools | 9 Comments

How to configure Kotlin in your project

Kotlin can be freely mixed with Java. That means that you can easily add Kotlin code to an existing Java project. All you need to do is create a new Kotlin file (*.kt) and tell the environment to use Kotlin. … Continue reading

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Working with Kotlin in Android Studio

With the release of M6, we announced support for Android Studio. Let’s take a deeper look at how to get up and running with Android Studio and Kotlin.

Posted in Tools | Tagged , | 21 Comments

KAnnotator 0.1 is out

We announced KAnnotator back in December: it helps you against NPEs in Java and makes your Kotlin code nicer. Today we are pleased to announce a KAnnotator Plugin for IntelliJ, version 0.1. It is available from the plugin repository.

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“Surround with…” comes to Kotlin

Great news for fans of Intellij IDEA: “Surroud with…” action is now available for Kotlin! What is the “Surround with…” action? This action allows you to surround a block of code with if, try or other statements (see the full … Continue reading

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Let’s Kode Together!

As Kotlin Web Demo is the simplest way to try Kotlin. Today we unveil some new features that make it even more fun. HTML5 Canvas We added support for HTML5 Canvas (for the JavaScipt back-end) so that you can now … Continue reading

Posted in Tools | 4 Comments

Kotlin Web Demo is out!

It’s been a little more than a year since the first commit was pushed to our source control, and we are happy to announce the first public preview of Kotlin. This preview works as follows: You go to and … Continue reading

Posted in Tools | Tagged | 32 Comments