CurseForge · Minecraft mod
OptiForge
Make OptiFine to be compatible with Forge.
Quick answer
Which OptiForge release matches 1.17.1 Forge?
OptiForge-MC1.17.1-0.1.1 targets 1.17.1 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 OptiForge 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 OptiForge-MC1.17.1-0.1.1 need?
OptiForge-MC1.17.1-0.1.1 on 1.17.1 Forge. Every mod below is checked against that same setup.
This file does not list any required mods. Do not add a library just because a different file uses it.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add OptiForge without breaking your instance.
Built for OptiForge-MC1.17.1-0.1.1 on 1.17.1 Forge. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use OptiForge-MC1.17.1-0.1.1. It targets 1.17.1 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 OptiForge-MC1.17.1-0.1.1. It opens that exact file at the source.
About this project
What does OptiForge add?
OptiForge
This mod can make OptiFine to be compatible with Forge. This is an alternative before OptiFine has been officially compatible with Forge.
This mod doesn't contain OptiFine itself.
How to Use
OptiForge-MC1.13.2: WIP
OptiForge-MC1.12.2: No plan
before 1.16.5: You just need to put OptiFine jar, OptiForge to mods folder, and enjoy the game!
Although OptiFine 1.15.2 has been compatible with forge since G1 pre14, OptiForge will be compatible new forge version faster, and there is an issue between OptiFine and other core mods which OptiForge fixed: https://github.com/cpw/modlauncher/issues/37
About reporting crash
I recommend installing MoreCrashInfo mod. This mod will print more useful information to crash reports, and these can help us locate errors faster.
``
Screenshots

Project description from CurseForge.
Pick your setup
OptiForge by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.17.1
1 loader build1.16.5
1 loader build1.16.4
1 loader build1.16.3
1 loader build1.16.2
1 loader build1.16.1
1 loader build1.15.2
1 loader build1.14.4
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
OptiForge versions and loaders
OptiForge-MC1.17.1-0.1.1
OptiForge-MC1.17.1-0.1.1.jar
3 Oct 2021
OptiForge-MC1.17.1-0.1.0
OptiForge-MC1.17.1-0.1.0.jar
14 Aug 2021
Looking for an older file? The official CurseForge project page is in Resources.
