Is there any opensource software like cpanel?

Question

Have to know this thing that it exist or not.

Answer 1

There's Ravencore and GPLHost and probably many more, those were just the first two google results for the pretty straightforward search string 'open source hosting control panel'.

Answer 2

List of Free an Open Source Control Panels, à la Wikipedia

Answer 3

I'm one of the lead developers of GNUPanel, we're actually planning on collaborating with Ravencore in the very near future (prior to our next release). The idea being, coming up with a universal plug-in system so that GNUPanel plug-ins will work on Ravencore too.

Right now, neither of us are as 'polished' as c-panel, but I can accurately say that we're far more efficient under the hood and we avoid the single server mentality.