For some reasons you don't want to download this Twitch application to get some modpacks. Maybe like me you hate it. Maybe like me you must retry several times before Twitch app will download your modpack.
Worry no more, because here you got

Warning: If you are so afraid of cmd, better go away from here. Here you got something with GUI written in Java, I don't know how it works, use at your own responsibility. Maybe I will add some GUI to this project later

First you need project name, you take it from modpack url

Now just open your terminal/cmd, enter the directory when you want to download modpack and type

    cmpdl <project name>

For example

    cmpdl project-ozone-light

And wait until it's downloaded

And then run this command. Voilà it's installed

    npm install -g curse-modpack-downloader

MIT