jNetMap helps you to keep an eye on your network. You can draw a graphical representation of your network, and jNetMap will periodically check if the devices are still up or a service is still running. You can also set up E-mail notifications or let jNetMap execute a script when a device goes down or comes up again. Additionally, you may attach notes to a device, initiate an RDP/VNC/SSH connection to a device and much more.

Note: jNetMap is not a network discovery/auditing tool, there are better tools out there for that. And if you need enterprise grade monitoring, you should check out Nagios or Zabbix instead. The idea here is to have a mission control center-style display for networks.

Quick Start

  • Create a new file (Menu: File > New).
  • Scan your network for devices (Menu: Tools > Network Scanner).
  • The Network Scanner will automatically use the IP-Range of your first active network-connection. Change IP/Subnet if necessary. (Hint: Use CIDR-Notation in the first field and hit enter).
  • Click “Scan”, wait for a moment, then click “Add”.
  • jNetMap will try to find the best ping-method, name and other settings for the devices and add them to the map.
  • Drag the devices to an appropriate position on the map or choose a layout from View > Layout.


... not what you were looking for? There was another project that was called jNetMap back in 2006, you can visit it here.