KEYSTORE File Extension

Java Keytool Key Database

File Type keystore
Developer Oracle Corporation
Popularity
4.6 (39 votes)
Application Eclipse IDE
Category Data Files
Format Binary

What is a KEYSTORE file?

Files with the KEYSTORE extension are specifically tied to Java Keytool Key Database, a Data Files type, and there are 6196 files in this category.

Oracle, the developer of the Java Keytool Key Database (KEYSTORE), has released file format and 36 programs designed to handle them.

KEYSTORE files are compatible with various operating systems, including Windows, Linux and Mac OS as well as mobile platforms such as Android. There are 4 programs available to open a KEYSTORE file, including popular tools like Java Development Kit, Eclipse IDE and Java.

Windows

Mac OS

Linux

Android

Google Android

How to open a KEYSTORE file?

If you are having trouble opening a KEYSTORE file, it usually means the right software is not installed. Choose a program from the list that matches your operating system. Next, visit the official website of the developer, download the software, and install it on your device.

Java Development Kit, Eclipse IDE and Java are among the most widely used programs for handling KEYSTORE files. To set up the newest version of Eclipse IDE on your device, simply go to the official Eclipse website. There you can download the edition compatible with every operating system.

Once setup is done, your operating system should assign Eclipse IDE as the default app for KEYSTORE files.

Set Eclipse IDE as the default KEYSTORE program

Change Default Program on Mac

Right click or Control + left click on the desired KEYSTORE file;
Choose "Open in Application" and click "Other";
Scroll down to the bottom of the window, where you will find the "Enable" menu. Default, "Recommended Programs" will be selected;
In this menu, choose "All Programs" and navigate to Eclipse IDE. Check the box next to "Always open in app" to make it the default program.

Change default programs in Windows

To get started, right-click your KEYSTORE file, then choose "Open With" and select "Choose Another Application" from the context menu;
In the pop-up window, select the Eclipse IDE application;
Check the "Always use this application" checkbox, and then click "OK" to apply the selected application as the default for opening KEYSTORE files.

Solve problems with KEYSTORE files

If you encounter issues with KEYSTORE files, don’t worry—most can be fixed with minor software adjustments. Refer to the troubleshooting tips below.

What are the steps to repair a damaged KEYSTORE file?

Start a data recovery program and open the damaged KEYSTORE file. Then, choose the "Repair" option from the menu. Please wait patiently for the recovery process to finish as it will automatically repair the damaged data files.

How can I determine if my KEYSTORE file is damaged?

The signs of corrupted KEYSTORE data files can manifest as:

Trying to work with the archive in Eclipse IDE or other programs causes instability or program crashes;
Error notifications appear during file manipulation;
The file does not open correctly or displays error messages;
An unexplained increase in the size of the KEYSTORE file;
The file shows slow performance when edited in Java Development Kit;

What are the reasons behind Eclipse IDE crash?

Insufficient software updates are a likely cause of Eclipse IDE crashes. Be sure to install the latest updates for Eclipse products.

Restarting your computer will solve many common problems, which is why it’s the first thing you should do before changing any settings related to the software.

How to edit a KEYSTORE file?

To modify KEYSTORE files, it is necessary to install dedicated software that lets you open and edit data files. Online KEYSTORE editors generally offer fewer tools compared to programs designed for Java Keytool Key Database.

Best KEYSTORE editors 2026

Following these criteria, we have put together a list of recommended KEYSTORE editors.

KEYSTORE Editor Software	Developer	Platforms	Overall Rating
Java Development Kit	Oracle	Windows, Mac OS, Linux	4.9 out of 5 (43 reviews)
Eclipse IDE	Eclipse	Windows	4.6 out of 5 (42 reviews)

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