Files with cert file extension are used by Keychain Access application for Mac OS X.

There are 2 other file types using
the CERT file extension!

empty icon.cert - Netscape certificate index data file

empty icon.cert - Open Virtual Machine Format certificate

Detailed description

Software that open cert file

Add comment

CERT file extension - Keychain Access data

What is cert file? How to open cert files?

File type specification:

Various data file type icon Various data file type

The cert file extension is associated with the Keychain Access, a tool included to Apple Mac OS X (macOS) operating system that allows users to manage passwords and logins.

The cert file stores some kind of data used by Keychain Access.

The default software associated to open cert file:

Keychain Access icon

Apple, Inc. logoKeychain Access  Apple macOS / Mac OS X software

Company or developer:
Apple, Inc.

Keychain Access allows users to access the Keychain and configure its contents, including passwords for websites, web forms, FTP servers, SSH accounts, network shares, wireless networks, groupware applications, encrypted disk images, etc.

Help how to open:

Probably not meant to be accessed by the user.

How to convert:

Probably cannot be converted to anything else.

List of software applications associated to the .cert file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open cert file, edit cert file, convert cert file, view cert file, play cert file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting cert files.

Programs that can create cert file - Keychain Access data

Programs supporting the exension cert on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Keychain Access for create cert file action.

Apple macOS / Mac OS X:

Previous file extension
CERT file extension > Various data file types

Next file extension


Enter any file extension without dot (e.g. pdf)
Search for file extension details and associated application(s)

RSS feed