I'm searching for a free alternative of RealVNC for Mac OS X El Capitan (10.11).

I have one "special need" for the program. I need to be able to change the port of the Mac I am currently using.

I couldn't find anything yet, at least nothing that works with El Capitan... Any recommendations?

1 Answer 1



If you are looking for a VNC client, the open source Chicken client supports connecting to specific ports.

Tiger VNC

You can install Tiger VNC via the brew project with:

brew install tiger-vnc

macOS Built-in Screen Sharing

Alternatively, you can use macOS's built in Screen Sharing application to connect to specific ports via a well formed URL, such as vnc://

VNC Servers

For VNC servers, other than the built-in macOS VNC server, take a look at OSXvnc.


You could take a different approach and tunnel the existing VNC service through ssh or another tool. This would expose the VNC service through any port you desire without needing a special VNC server.

  • 2
    Thanks for pointing out the port number for the built-in screen sharing URL. That was the part I was missing when trying to connect to a Linux box running a TightVNC server.
    – David C.
    Aug 27, 2021 at 19:01
  • OSXvnc only gives me like 8 fps and only one display at a time.
    – Nakilon
    Jan 3, 2022 at 4:28

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