You can download Smaller Nether Portals on CurseForge and Modrinth:
  CurseForge:   https://curseforge.com/minecraft/mc-mods/smaller-nether-portals
  Modrinth:      https://modrinth.com/mod/smaller-nether-portals
To keep a better overview of all mods, the issue tracker is located in a separate repository.
  For issues, ideas, suggestions or anything else, please follow this link:
    -> Issue Tracker
Because of the way mod loader files are bundled into one jar, some extra information is needed to do a PR.
  A wiki page entry about it is available here:
    -> Pull Request Information
Requires the library mod Collective.Â
  This mod is part of The Vanilla Experience.
Smaller Nether Portals is a minimalistic mod which allows the creation of smaller nether portals, specifically the sizes 1x2, 1x3 and 2x2.
Note: There is currently a "bug" in Minecraft when teleporting from a smaller portal, which places the player underneath the portal on the other side. The mod can detect when this happens, and will teleport the player in front of the portal instead. It detects the blocks below, and if it's Netherrack, Soul Sand or an Air block, it will replace those blocks with obsidian to prevent unwanted deaths. It will also create an air gap if necessary.
The smaller portals:
If you wish to do so, you may omit the corners:
Here the mod has detected the player underground after using the smaller portal, and instead placed the player in front of it:
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You may freely use this mod in any modpack, as long as the download remains hosted within the CurseForge or Modrinth ecosystem.
Serilum.com contains an overview and more information on all mods available.
Comments are disabled as I'm unable to keep track of all the separate pages on each mod.
For issues, ideas, suggestions or anything else there is the Github repo. Thanks!
