ZPanel!

Web-based Linux server administration panel.Works best for VPS and dedicated servers.Runs on Debian, Ubuntu, RHEL and CentOS.

ISPmanager is one of the leading web server control panels on the market. The control panel allows you to manage your entire web-server through a user friendly and comprehensive multi-language web interface. With the click of a mouse you can manage users, hosting packages, mail boxes, databases and much more from one centralized location in a simple and intuitive way.

The cPanel and WHM software package makes life easier for web hosts and the website owners they serve. It offers easy-to-use, powerful tools that perform essential tasks quickly, easily, and reliably.

Vesta Control Panel is an open source web hosting control panel with premium features, minimalistic, safe and light

ISPConfig 3 is an open source hosting control panel for Linux. ISPconfig 3 is capable of managing multiple servers from one control panel. ISPConfig is licensed under BSD license.

Sentora is an open-source web hosting control panel built specifically to work on a variety of Linux distributions. Sentora is licensed under the GPL and is a separately maintained fork of the original ZPanel project.

ServerPilot makes it easy to host WordPress and any other PHP sites on DigitalOcean, Linode, Rackspace, Vultr, and other cloud providers. By turning any server into an optimized PHP and WordPress hosting platform, ServerPilot makes it simple to run your sites in the best way possible: on cloud servers.

Froxlor: The server administration software for your needs.Developed by experienced server administrators this open source (GPL) panel simplifies the effort of managing your hosting platform.

Free CentOS Linux Web Hosting control panel designed for quick and easy management of (Dedicated & VPS) servers without of need to use ssh console for every little thing

SolidCP is a complete management portal for Hosting Companies and IT Providers to automate the provisioning of a full suite of Multi-Tenant services on servers.

Internet Multi Server Control Panel (i-MSCP) is a project founded to build an impressive and powerful opensource Multi Server Control panel for personal and professional usage. It must allow to manage any shared hosting environment in an easy way without any human intervention on the servers file system.

VHFFS is a massive virtual hosting platform for free software.

AlternC is a set of software management on Linux shared hosting, easy to use, easy to install, based solely on software Opensource AlternC being under the GPL .

Ehcp is a Hosting Control Panel (hcp).hcp is a tool in a server to facilate the process of hosting domains, emails, adding domains, ftp users and so on.