What is Portecle? I heard that Portecle is nice certificate management tool.

Portecle is a user friendly GUI application for creating, managing and examining keystores, keys, certificates, certificate requests, certificate revocation lists and more. Portecle is a Java based application and runs on Windows, Linux, Mac and other platforms. It is free.

Currently, Portecle can be used to, for example:

• Create, load, save, and convert keystores.
• Generate DSA and RSA key pair entries with self-signed version 1 X.509 certificates.
• Import X.509 certificate files as trusted certificates.
• Import key pairs from PKCS #12 and PEM bundle files.
• Clone and change the password of key pair entries and keystores.
• View the details of certificates contained within keystore entries, certificate files, and SSL/TLS connections.
• Export keystore entries in a variety of formats.
• Generate and view certification requests (CSRs).
• Import Certificate Authority (CA) replies.
• Change the password of key pair entries and keystores.
• Delete, clone, and rename keystore entries.
• View the details of certificate revocation list (CRL) files.

The picture below shows you a screenshot of Fortecle: