CertKit is a free utility designed for managing TLS/SSL certificates and private keys effectively. It supports a range of formats including PEM, DER, PKCS#12, PKCS#7, and JKS, making it versatile for different users' needs. The application catalogs certificates in a local SQLite database, ensuring easy access and organization. One of its key features is the ability to resolve certificate chains via Authority Information Access (AIA), which simplifies the management process further.

In addition to its cataloging capabilities, CertKit allows users to export organized bundles that are ready for deployment. This feature is particularly useful for system administrators and IT professionals who need to maintain secure communications. Overall, CertKit stands out as a comprehensive solution for those seeking to streamline their certificate management tasks.