Updated on:

February 16, 2024



Operating System:

Windows 11 / Windows 10 / Windows 8 / Windows 7


Free / Trial

Stunnel is an open-source software that allows you to create a secure tunnel between two computers over the internet. This tunneling process is done using SSL encryption, which ensures the security of the data being transferred. Stunnel can be used to secure various network services, such as SMTP, POP3, IMAP, HTTP, and others. It works on multiple platforms, including Windows, Linux, and macOS.


Open-source software
Creates a secure tunnel using SSL encryption
Supports various network services, including SMTP, POP3, IMAP, HTTP, and others
Multi-platform support, including Windows, Linux, and macOS
Lightweight and easy to install
Allows for configuring various SSL options

Provides a secure tunnel for network services
Open-source software
Multi-platform support
Lightweight and easy to install

Not as user-friendly as other similar software
Requires some knowledge of SSL and network services to set up
Stunnel is a reliable and secure way to create a tunnel for network services. It’s open-source and supports multiple platforms, making it an accessible tool for many users. While it may not be as user-friendly as other software, it provides a great deal of flexibility and allows for configuring various SSL options. Overall, Stunnel is an excellent tool for those who require secure network services.

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