portaljs-1.21.1-1.2.0.jar is a release file of the Minecraft mod PortalJS for NeoForge, made for Minecraft 1.21.1. It was published on August 1, 2026 and is 0.2 MB in size. For the full description, screenshots and every other version, visit the PortalJS mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
