ModsJava
CBook
CBook adds 2 books: one copies items, the other temporarily clones items. Free Minecraft Java mod for 1.21, 1.21.1, 1.21.2.
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
CBook adds two magic books to your server. CopyBook lets players copy another player’s held item and store it inside the book, then withdraw stored items later using a GUI menu. CloneBook gives a temporary clone of a player’s held item that expires after a set time and can revert back into the CloneBook. Includes permissions, cooldowns, blacklisted items, and strong anti-dupe/anti-tamper protection for temporary clones.
Verified by MCModsHub
- Ships as CBook-1.0.jar — drop this file into the mods folder
- Download size: 38 KB
- Download link checked 23 Aug 2026 — working
These come from our own check of the pack file, not from the source page.