
Modrinth · Minecraft mod
Polybook
Server-side book item for Polydex (Polymer mod)
Quick answer
Which Polybook release matches 1.21.8?
Polybook 1.0.1 targets 1.21.6, 1.21.7, 1.21.8 with Fabric, Quilt. Do not install it on the client. It must be installed on the dedicated server. All 2 required mods have matching files.
Where it goes
Is Polybook required on the client, server, or both?
Do not install it on the client. It must be installed on the dedicated server.
This file is marked server-only.
What else does Polybook 1.0.1 need?
1.0.1 on 1.21.8. Every mod below is checked against that same setup.
Install Polydex, Polymer first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Polybook without breaking your instance.
Built for Polybook 1.0.1 on 1.21.8. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.0.1. It targets 1.21.6, 1.21.7, 1.21.8 with Fabric, Quilt; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Polydex, Polymer first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
Do not install it on the client. It must be installed on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.0.1. It opens that exact file at the source.
About this project
What does Polybook add?
Polybook
Polybook is Polymer mod that adds server-side item called Polydex. It was made to make usage of Polydex feel more vanilla!
You can still use /polydex command, but you can also just use the item. Polydex book uses vanilla texture, which means that your texture packs will still work!
Right-click with polydex to open Polydex menu, instead of using command
Recipe is simple: one block of any leaves and one book
Project description from Modrinth.
Pick your setup
Polybook by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.10
2 loader builds1.21.9
2 loader builds1.21.8
2 loader builds1.21.7
2 loader builds1.21.6
2 loader builds1.21.5
2 loader builds1.21.4
2 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Polybook versions and loaders
1.0.1
polybook-1.0.1.jar
17 Nov 2025
Looking for an older file? The official Modrinth project page is in Resources.