GraalJS-1.21.x-24.2.1-1-Forge-all.jar is a release file of the Minecraft mod GraalJS for Forge, made for Minecraft 1.21.5, 1.21.4, 1.21.3, 1.21.1, 1.21.2. It was published on June 13, 2025 and is 34.5 MB in size. For the full description, screenshots and every other version, visit the GraalJS mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
