KT file icon

KT File Extension

Kotlin Source Code Format

What is KT file?

Files with the .KT extension contain source code in the Kotlin language. These are textual files. Definitions, functions, and commands are created in accordance with the syntax specified in the specification created by JetBrains. This language is an alternative to Java, designed to replace it for Android applications. Since 2019, Google recommends using it primarily. It offers better programming capabilities for creating mobile applications.

Contents of KT Files - Kotlin Source Code

Source code stored in files with the .KT extension requires compilation, unlike Kotlin script files with the .KTS extension. The files can contain:

  • Function definitions in a procedural approach,
  • Object class definitions in an object-oriented approach,
  • Declarations,
  • Package information,
  • Import of needed libraries.
Opening KT files is possible in any text editor. However, application projects are created in integrated IDEs such as Eclipse, NetBeans, Android Studio, or Intellij IDEA.

KT Extension Files for Applications

KT files are compiled by the virtual machine into packages for the JVM. They are quickly handled, allowing for easy portability between different mobile platforms - Android and iOS. The Kotlin language provides good server support and an intuitive interface for websites. On devices, an application written in Kotlin does not contain source code files. KT files are created during the project development in the developer environment and are compiled into application form.

Programs which support KT file extension

The list that follows enumerates programs compatible with KT files, divided into 3 categories based on operating system on which they are available. Files with KT extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

Programs that support KT file

Updated: 03/29/2024

How to open file with KT extension?

Being unable to open files with KT extension can be have various origins. What is important, all common issues related to files with KT extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. The list below will guide you through the process of addressing the encountered problem.

Step 1. Get the IntelliJ IDEA

Install software to open KT file The main and most frequent cause precluding users form opening KT files is that no program that can handle KT files is installed on user’s system. This issue can be addressed by downloading and installing IntelliJ IDEA or different compatible program, such as NetBeans, Android Studio. On the top of the page a list that contains all programs grouped based on operating systems supported can be found. One of the most risk-free method of downloading software is using links provided by official distributors. Visit IntelliJ IDEA website and download the installer.

Step 2. Check the version of IntelliJ IDEA and update if needed

Update software that support file extension KTYou still cannot access KT files although IntelliJ IDEA is installed on your system? Make sure that the software is up to date. Software developers may implement support for more modern file formats in updated versions of their products. If you have an older version of IntelliJ IDEA installed, it may not support KT format. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using IntelliJ IDEA.

Step 3. Associate Kotlin Source Code Format files with IntelliJ IDEA

If the issue has not been solved in the previous step, you should associate KT files with latest version of IntelliJ IDEA you have installed on your device. The method is quite simple and varies little across operating systems.

Associate software with KT file on Windows

The procedure to change the default program in Windows

  • Right-click the KT file and choose Open with option
  • Select Choose another app → More apps
  • The last step is to select Look for another app on this PC option supply the directory path to the folder where IntelliJ IDEA is installed. Now all that is left is to confirm your choice by selecting Always use this app to open KT files and clicking OK.
Associate software with KT file on Mac

The procedure to change the default program in Mac OS

  • From the drop-down menu, accessed by clicking the file with KT extension, select Information
  • Proceed to the Open with section. If its closed, click the title to access available options
  • Select IntelliJ IDEA and click Change for all...
  • If you followed the previous steps a message should appear: This change will be applied to all files with KT extension. Next, click the Continue button to finalize the process.

Step 4. Verify that the KT is not faulty

Should the problem still occur after following steps 1-3, check if the KT file is valid. Being unable to access the file can be related to various issues.

Check KT file for viruses
1. Verify that the KT in question is not infected with a computer virus

If the file is infected, the malware that resides in the KT file hinders attempts to open it. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. If the scanner detected that the KT file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Ensure the file with KT extension is complete and error-free

If you obtained the problematic KT file from a third party, ask them to supply you with another copy. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. When downloading the file with KT extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.

3. Check if the user that you are logged as has administrative privileges.

Some files require elevated access rights to open them. Log in using an administrative account and see If this solves the problem.

4. Make sure that the system has sufficient resources to run IntelliJ IDEA

The operating systems may note enough free resources to run the application that support KT files. Close all running programs and try opening the KT file.

5. Verify that your operating system and drivers are up to date

Latest versions of programs and drivers may help you solve problems with Kotlin Source Code Format files and ensure security of your device and operating system. It is possible that one of the available system or driver updates may solve the problems with KT files affecting older versions of given software.

Do you want to help?

If you have additional information about the KT file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on KT file.

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