While Minecraft has seen quite a few mods since its 1.0 release back in 2011, we’ve learned of one that hasn’t really been done until now.
The mod, BetterPortals, lets you pass through both Nether and End portals without a loading screen, and even works on both regular portal shapes and custom ones too.
You can download the mod via CurseForge (via andruwus). Due to the loading-cutting nature of this mod, it has incompatibilities with other mods like Portal Gun, Cubic Chunks, and others. Render has to be disabled, and Render Region can’t be used near portals. Shader mods also have issues.
Similar mods have attempted over the years, but were never fully realized.
Minecraft has been available for Windows PC, Mac, Linux, PlayStation 3, PlayStation 4, Xbox 360, Xbox One, 3DS, PS Vita, Wii U, Nintendo Switch, and both iOS and Android.