Random Portals gives you customizable portals to both the Nether and the End. You can place them anywhere and in any shape you want. And they can be placed vertically as well as horizontally.
The portals can be placed as small as single blocks or in a variety of designs.
There’s also a variety of colors to choose from to fit your own aesthetic.
And they can be placed within any block and as large as you want as well!
This mod requires an additional API found here.DownloadForumInstall Guide