You can use TightVNC:
Using a Web Browser as a Viewer
The VNC servers also contain a small Web server. If you connect to it
with a web browser, the Java version of the viewer will be downloaded
automatically, allowing you to access the remote desktop. Obviously,
your Web browser must support Java applets. Also, you should not use a
proxy, to let the Java applet access the remote server directly.
The server listens for HTTP connections on port 5800 + display number.
(Remember a WinVNC machine defaults to the display 0.) So to connect
to the display 2 on machine "myhost", you would point your web browser
at: http://myhost:5802/
. The applet will prompt you for your
password, and should then display the desktop.
Con:
- your password is sent in plain text (HTTPS is not used). RealVNC Viewer for Google Chrome is much better in that respect (all communications are encrypted using 128-bit AES technology, so your connection cannot be intercepted or spied upon. For connections to Enterprise, ultra-secure 256-bit AES is available.).