jei-1.21.1-forge-19.27.0.340-async-5.jar is a beta file of the Minecraft mod JEAsync for Forge, made for Minecraft 1.21.1. It was published on April 21, 2026 and is 1.5 MB in size. Pre-release builds can contain bugs — back up your world before installing. For the full description, screenshots and every other version, visit the JEAsync mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
