GoToAssist is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality. The best Linux alternative is TeamViewer. It's not free, so if you're looking for a free alternative, you could try DWService or TightVNC. If that doesn't suit you, our users have ranked more than 50 alternatives to GoToAssist and many of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to GoToAssist are AnyDesk (Free Personal), NoMachine (Freemium), VNC Connect (Freemium) and Zoho Assist (Freemium).
DWService is an open source project which offers a service that allows access to remote systems (Windows, Mac, Linux, Raspberry...) using a standard web browser - without any component required on the client side.
TightVNC is a free remote control software package. With TightVNC, you can see the desktop of a remote machine and control it with your local mouse and keyboard, just like you would do it sitting in the front of that computer.
VNC is remote access and control software which allows you to view and fully interact with one computer desktop (the "VNC Connect") using a simple program (the "VNC viewer") on another computer desktop or mobile device anywhere on the Internet.
Support customers on a remote computer easily through web-based, on-demand remote support sessions. Set up unattended remote access and manage remote PCs, laptops, mobile devices, and servers effortlessly.
Dayon! is a user friendly, open-source, cross-platform solution, that allows controlling of remote computers. It can be used as free alternative to various commercial remote desktop and remote assistance products.