.KBX File Extension

GnuPG Keybox

Developer The GNU Project
2.0  |  3 Votes

What is a KBX file?

A KBX file is a keybox created by GNU Privacy Guard (GnuPG). It contains one or more OpenPGP public keys and/or X.509 certificates. It also contains associated metadata.

More Information

GnuPG is a free alternative to Symantec's Pretty Good Privacy (PGP) software. It allows users to encrypt and decrypt emails, texts, directories, and other files. When encrypting and decrypting files, GnPG uses a variety of public and private security keys. A user's public keys are saved in a KBX file.

Typically, a user's KBX file is named pubring.kbx and stored in their .gnupg directory. Users can import a KBX file into other OpenPGP-compliant software, such as OpePGP.js, to use the public keys and certificates it contains with that software.

Common KBX Filenames

Pubring.kbx - The default KBX file used by GnuPG. It is stored in the .gnupg directory.

How to open a KBX file

KBX files are not meant to be opened. You can use GnuPG's kbxutil to view information about a KBX file. For more information, refer to GnuPG's kbxutil documentation.

Open over 400 file formats with File Viewer Plus.Free Download

Programs that open or reference KBX files


Verified by FileInfo.com

The FileInfo.com team has independently researched the GnuPG Keybox file format and Mac, Windows, and Linux apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

If you would like to suggest any additions or updates to this page, please let us know.