NetworkManager is a daemon that sits on top of libudev and other Linux kernel interfaces and provides a high-level interface for the configuration of the network interfaces.
License: Open Source
Wicd is a lightweight and straightforward network management tool ideal for simpler setups, while NetworkManager offers a more robust and feature-rich experience suitable for complex networking needs. Users who prefer a minimalist approach may gravitate towards Wicd, whereas those requiring advanced features will likely choose NetworkManager.