PuTTYgen for Windows

PuTTYgen is a free key generator utility designed to create public and private SSH key pairs. As a vital component of the popular open-source networking client PuTTY, this tool focuses on secure data transmission and digital signatures. Users can generate various public-key cryptosystems with ease, primarily saving keys in PPK format while also providing conversion options to other formats. This utility can be utilized directly through the PuTTY interface or downloaded independently, making it accessible for different use cases.

The functionality of PuTTYgen is straightforward, allowing users to generate SSH keys by clicking the Generator button and entering a unique passphrase. The generated keys can be saved for later use, with options to load existing keys for editing. This flexibility supports both new cloud server creation and existing server key management. Although the interface may appear outdated, the core features of generating and managing SSH keys remain robust, catering to users with varying levels of technical expertise.