
PacketBooks
A simple plugin for fixing various book-based data overflow exploits by hiding the actual book contents unless the player actually needs to view them.
⬇ Download on ModrinthPacketBooks
A simple plugin which empties all books' contents when they are not needed to fix various data overflow exploits.
Installation
- Download the latest plugin file.
- Drop it into your server's
pluginsfolder. - Restart the server.
That's it! The plugin should just work out-of-the-box.
Discord Support
If you have any questions, found any issues, or just want to chat with me, consider joining the Paper Chan Hideout Discord server! You can use the #packet-books channel to talk about this plugin! (Bonus point: That server has great emojis 🙂).
Deinstallation
If you want to uninstall the plugin, without losing book data, you'd actually want to keep the plugin! In order for all books to be restored to their "Vanilla" state, you have to set the mode in plugins/PacketBooks/config.yml to UNDO and leave the plugin on the server. The plugin will then only do minor logic with the goal of completely restoring all books that players come across.
What does it do under the hood?
This plugin saves the contents of any book items externally to disk and then removes the actual data on the item. This means that at no point in time, a lot of data is sent to players. The only time when the book contents are written back to the item is when the book is located in the player's hotbar, allowing editing and viewing of the books, only when really needed!
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.6, 1.21.7, 1.21.8
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as packetbooks-1.1.0.jar — drop this file into the mods folder
- Download size: 45 KB
- Download link checked 9 Sept 2026 — working
These come from our own check of the pack file, not from the source page.