CurseForge · Minecraft mod
Atlas Lib
A serialzation and math libary for minecraft mods.
Quick answer
Which Atlas Lib release should I use?
Atlas Lib Atlas-Lib-1.12.2-1.1.11.jar targets 1.12.2 with Forge. The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server. No extra mods listed for this file.
Where it goes
Is Atlas Lib required on the client, server, or both?
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
The source does not explicitly classify this release as client-only or server-only.
What else does Atlas Lib Atlas-Lib-1.12.2-1.1.11.jar need?
Atlas-Lib-1.12.2-1.1.11.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Atlas Lib without breaking your instance.
Built for Atlas Lib Atlas-Lib-1.12.2-1.1.11.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use Atlas-Lib-1.12.2-1.1.11.jar. It targets 1.12.2 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside Atlas-Lib-1.12.2-1.1.11.jar. It opens that exact file at the source.
About this project
What does Atlas Lib add?
A library for shared code between Minecraft mods.
This mod does nothing if installed by itself, and only exists as a dependency for other mods
Features Included for dependents:
- Various utilities to streamline the registering of sets of items and blocks.
- Various utilities to handle the rendering of models.
- Various utilities related to entity and block positioning.
- Utilities to read json from datapacks.
- Utilities to read values from NBT.
- A Handful of Networking Code and Utilities
- Other shared code between mods.
Mods that use Atlas Lib
Have questions or suggestions? Join my discord!

Project description from CurseForge.
Pick your setup
Atlas Lib by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21
1 loader build1.20.1
2 loader builds1.20
2 loader builds1.19.4
1 loader build1.19.3
1 loader build1.19.2
1 loader build1.19
1 loader build1.18.2
1 loader build1.18
1 loader build1.17.1
1 loader build1.16.5
1 loader buildShowing the newest 12 of 13 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Atlas Lib versions and loaders
Atlas-Lib-1.12.2-1.1.11.jar
6 Jun 2026
Atlas-Lib-1.12.2-1.1.10.jar
30 Mar 2026
Atlas-Lib-1.12.2-1.1.9.jar
9 Sept 2025
Atlas-Lib-1.12.2-1.1.8a.jar
22 Aug 2025
Atlas-Lib-1.12.2-1.1.8.jar
30 Jul 2025
Atlas-Lib-1.12.2-1.1.7a.jar
23 Jul 2025
Atlas-Lib-1.12.2-1.1.7.jar
23 Jul 2025
Atlas-Lib-1.12.2-1.1.6.jar
5 Nov 2024
Atlas-Lib-1.21.0-1.1.14.jar
20 Jun 2024
Atlas-Lib-1.21.0-1.1.13.jar
19 Jun 2024
Atlas Lib-1.20.1-1.1.12.jar
11 Apr 2024
Atlas Lib-1.20.1-1.1.11a.jar
16 Jul 2023
Looking for an older file? The official CurseForge project page is in Resources.