zCI is freeware for computer inventory. It is free but contains a lot of corporate feature. zCI has 100% web-based user interface, including its automatic data gathering mechanism. Also, zCI has peripheral inventory capability and facilities to manage device ownerships.
zCI provides client programs for Windows and Linux/Unix operating system. The client programs automatically collect hardware and software information, such as hardware list, software list, computer serial number, monitor serial number, MAC address and etc. The free zCI gives you more and better features compared to many non-free inventory softwares.

zCI Features:
* Automatically collect hardware information, such as computer serial number, monitor serial number, CPU type, harddisk information, memory size & etc. Monitor serial number detection are rarely provided by other computer inventory programs.
* Automatically collect installed software information*.
* Client programs are available for MS Windows (JScript based) and Linux (Java based). Both client programs are less than 100KB and not necessary to be installed in the client computers. Linux client might be applicable for Unix systems.
* Server-side programs can be installed on any OS and hardware platform. zCI server only needs web-server, PHP and MySQL database.
* Data management can be done via zCI's web-based interface with 3 access levels (all users, supervisor and administrator).
* Peripheral inventory facility. Other computer inventory software usually does not provide this facility.
* Ownership management. You can manage the ownership status (owned, lease, end of ownership, end of lase) of computer, monitor and peripheral entities.
* zCI is an open source software. You can modify it on your own.
* *Software inventory is not available by default for Linux client due to standard unavailability.

The license of this software is Free, you can free download and free use this network inventory software.