Apache Guacamole is a clientless remote desktop gateway. It supports standard protocols like VNC, RDP, and SSH. Developed by Glyptodon LLC
License: Open Source
Guacamole is an open-source, browser-based remote access solution that supports multiple protocols, making it versatile and customizable, while NoMachine is a high-performance remote desktop software focused on speed and multi-user capabilities, but it requires a paid license for commercial use.