A KT file contains Kotlin source code. The Kotlin programming language is developed by JetBrains. Kotlin is compatible with Java. Kotlin can reduce Java code by 40 percent. Kotlin supports functional and object-oriented styles. Kotlin helps avoid Null Pointer Exceptions.
The .kt extension indicates a Kotlin file. Kotlin code can run without compilation as a .kts script. Kotlin was announced as the preferred language for Android by Google. Android Studio supports Kotlin development.
To open a .kt file, use compatible tools like IntelliJ IDEA. Check KT files for viruses with antivirus software. Update your .kt file opening application for full compatibility. Learn more about KT files and Kotlin at the JetBrains website.
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IntelliJ IDEA
Android Studio
Eclipse