1. SysCP - http://www.syscp.org
2. ISPconfig - http://www.ispconfig.org
3. EHCP - http://www.ehcp.net
4. DTC - http://www.gplhost.com/software-dtc.html
5. Ravencore - http://www.ravencore.com
6. Cubepanel - http://www.cubepanel.com
7. Baifox - http://www.baifox.org/trac
8. Lxadmin - http://lxlabs.com/lxa/ (not GPL – free for 40 Domains)
9. Web-CP - http://www.web-cp.net (เลิกพัฒนาไปนานพอสมควร)