File Extension JKS

.JKS File

File extension: JKS
File type: Java Keystore


Notes about the JKS file extension:



To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened" (Windows 7) or "How do you want to open this file?" (Windows 10) if you double-click the file. There click on "More apps" and choose a suitable software to view such files on your PC or from email attachments.

The JKS file type is primarily associated with 'keytool' by Sun Microsystems, Inc.. keytool is a key and certificate management utility. It allows users to administer their own public/private key pairs and associated certificates for use in self-authentication (where the user authenticates himself/herself to other users/services) or data integrity and authentication services, using digital signatures. It also allows users to cache the public keys (in the form of certificates) of their communicating peers. A keystore is a storage facility for cryptographic keys and certificates. To actually use the certificates, you must use keytool to export the certificate from the keystore.

Detailed information for file extension JKS:


Primary association: keytool
Company: Sun Microsystems, Inc.
Related links: The Source for Java Developers, JDK Tools and Utilities, To Generate a Certificate Using the keytool

Other applications associated with file type JKS:

  • Jedi Knight Backup



To change file associations press Windows Key + X and then Apps and Features > Default apps > Choose default apps by file type. Invalid file associations could be the result of underlying issues within your Windows PC.

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