OptiFine 1.18.1
Download For Windows PC

Optimize Minecraft's performance & improve its graphics by using the OptiFine Mod.
Developer
sp614x
Updated
March 24, 2022
Size
6.2 MB
Version
1.18.1
Requirements
Minecraft 1.18.1 + Java (JRE)
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OptiFine 1.18.1 is the older version of OptiFine that supports Minecraft Java Edition 1.18.1. It has improved stability as it is a stable release instead of a preview (beta) release. So if you’re among those who are still playing Minecraft (JE) 1.18.1 and want to use OptiFine with it then download OptiFine 1.18.1.

OptiFine improves Minecraft Java Edition’s performance by optimizing Minecraft’s standard coding. It adds options like FPS boost, FPS control, configurable animations & details, faster math, etc. These options help it boost performance. It also has support for Minecraft shaders and textures packs along with some features which it adds by itself to improve vanilla Minecraft Java Edition’s looks.

Features of OptiFine 1.18.1

OptiFine is loaded with features and you can find the complete list on our latest version page . A few of those features are listed below:

  • Configurable Details & Animations: Nearly all Animations and Details options can be set to OFF or ON.
  • FPS Boost: Increases FPS significantly in Minecraft (JE) on most devices.
  • Support for Texture Packs & Shaders: OptiFine supports 3rd party Minecraft shaders and textures packs.
  • Dynamic Lights: Adds illumination to many light-emitting items.
  • Anti-aliasing: Smoothens jagged lines and rough edges of items to give a cleaner look.
  • Clean Water: Makes water clearer for underwater visibility.
  • Natural & Connected Textures: Removes grid-like patterns on certain blocks when reused and connects textures of items like glass, grass, etc giving a more natural look.

Compatibility & Requirements to Run OptiFine 1.18.1

Check out the compatibility of OptiFine 1.18.1 and the requirements to run it:

Compatibility

  • Compatible with Forge 39.1.0.
  • OptiFine 1.18.1 will only work with Minecraft 1.18.1.

Requirements

How to Install & Uninstall OptiFine 1.18.1

OptiFine installation is different depending on if you’re installing it in vanilla Minecraft or the Forge version. Visit our article for a detailed guide on How to install OptiFine. It covers installations on platforms and mod loaders.

Installing OptiFine 1.18.1 in Vanilla Minecraft (JE)

Step 1: Download the OptiFine installer and you will see a file “OptiFine_1.18.1_HD_U_H6.jar”.

Step 2: Launch it & click Install.

Installing OptiFine 1.18.1 in Minecraft Forge

Step 1: Download OptiFine and you will see the file “OptiFine_1.18.1_HD_U_H6.jar”. Move it into the “Local Disk (C:) > Users > (Your PC Name) > AppData > Roaming > .minecraft > mods” folder.

Uninstalling OptiFine 1.18.1

You can uninstall OptiFine 1.18.1 from vanilla Minecraft (JE) through the Minecraft Launcher. Go into the Versions tab then click on the three dots and from the drop-down menu click Uninstall.

To uninstall OptiFine 1.18.1 from the Minecraft Forge version go to the mods folder in Minecraft install directory and delete the “OptiFine_1.18.1_HD_U_H6.jar” file.

OptiFine Latest Version 1.18.1 Update

Fixed crash with Tinkers Construct (#6607) Compatible with Forge 39.1.0

Download OptiFine Old Versions

Version Size Requirements Date
1.20.1 6.7 MB Minecraft 1.20.1 + Java (JRE) 21/06/2023
1.20 6.7 MB Minecraft 1.20 + Java (JRE) 21/06/2023
1.19.4 6.7 MB Minecraft 1.19.4 + Java (JRE) 07/04/2023
1.19.3 6.7 MB Minecraft 1.19.3 + Java (JRE) 24/03/2023
1.19.2 6.6 MB Minecraft 1.19.2 + Java (JRE) 23/06/2023
1.19.1 6.5 MB Minecraft 1.19.1 + Java (JRE) 20/08/2022
1.19 6.5 MB Minecraft 1.19 + Java (JRE) 31/07/2022
1.18.2 6.4 MB Minecraft 1.18.2 + Java (JRE) 26/06/2023
1.18 6.2 MB Minecraft 1.18 + Java (JRE) 06/12/2021
1.17.1 6.04 MB Minecraft 1.17.1 + Java (JRE) 04/11/2021
1.17 6 MB Minecraft 1.17 + Java (JRE) 09/07/2021

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