OpenPortals
OpenPortals is a NeoForge library for creating custom dimension portals, released as a lightweight dependency other mods can bundle.
What it does
Modders use OpenPortals to build portals that lead to custom dimensions, and it is designed for Jar-in-Jar bundling so a mod can carry it inside its own file. The portal builder methods are documented in the Javadocs. Immersive Weapons requires it.
Only the client needs it for rendering and the server needs it for dimension logic, so both sides install it together. The mod is open source under the MIT License and is published for NeoForge, with files for 1.21.11 – 26.3.
Key features
Custom dimension portals
A simple API for defining portals that transport players into custom dimensions.
Portal builder methods
Builder methods let a developer configure a portal's frame and target, with reference in the Javadocs.
Jar-in-Jar bundling
The library is intended to be packaged inside other mods rather than installed separately.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Required by 1 mod
How it compares
Custom Portal API Reforged is a Forge and NeoForge library for 1.20.1 – 1.21.10, released under the MIT License and open source. Trashlib is a Fabric and NeoForge library for 1.21.4 only, also MIT licensed and open source. NeuroLib covers Forge and NeoForge for 1.20.1 – 1.21.1 under the GNU General Public License v3.0 only, and is open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| OpenPortals | NeoForge | 1.21.11 – 26.3 | Client and server | 2026-10-03 |
| Custom Portal API Reforged | Forge and NeoForge | 1.20.1 – 1.21.10 | Client and server | 2025-11-28 |
| Trashlib | Fabric and NeoForge | 1.21.4 | Client and server | 2025-06-22 |
| NeuroLib | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-05-09 |
Questions
Does Immersive Weapons need OpenPortals?
In the catalog
OpenPortals is one of 3,514 Library mods on ModsFinder, and one of 1,449 Library mods for NeoForge. 8,071 mods support Minecraft 26.3.
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What the author says
OpenPortals is a lightweight library mod that makes it easy to create custom portals. It's ideal for Jar-in-Jar purposes. The latest version can be found in the releases section of the repository.
Official listing
- Modrinth page
- modrinth.com/mod/openportals
- Owner
- AnonymousHacker1279
- Published
- 2026-01-24
- Updated on Modrinth
- 2026-10-03
- Facts verified
- 2026-10-15