open your system browser and visit the official download page using the embed link and save the .tar.gz archive of Toolbox on your system.
Also, install libfuse2 before running the APP image of JetBrains Toolbox otherwise you would get an error:
dlopen(): error loading libfuse.so.2
AppImages require FUSE to run.
You might still be able to extract the contents of this AppImage
if you run it with the --appimage-extract option.
See https://github.com/AppImage/AppImageKit/wiki/FUSE
for more information
To install use:
$ sudo apt install libfuse2
The downloaded file of the JetBrains Toolbox will be in Tar.gz format, so we have to extract it.
Assuming the download was done in the default directory:
$ cd Downloads
Extract the file:
$ tar -xzf jetbrains-toolbox-*.tar.gz --one-top-level=jetbrains --strip-components 1
Switch to extracted:
$ cd jetbrains
Now, finally, we run the AppImage application bundle of JetBrains toolbox available inside the extracted directory:
$ ./jetbrains-toolbox
Running the above command will automatically install and create an Application shortcut for JetBrains’s Toolbox.
The JetBrains Toolbox installation directory path is ~/.local/share/JetBrains/Toolbox/bin/jetbrains-toolbox.