Fabric's Optifine
ModpackFabric modpack with Optifine's features.
Mod grades
How grades workModpacks get no grade of their own, so we show the grades of its mods. Of its 19 graded mods, 16 are graded A or B, 2 C and 1 D to F. Its last update came out 5 years ago, for Minecraft 1.17.1. See the mods
About
Fabric's Optifine is a Fabric modpack that brings together many Optifine-like visual features and quality-of-life options with a focus on better performance. Sodium provides the main performance boost, while Iris adds shader support and Resolution Control lets players adjust the game's render resolution. Visual additions include dynamic light from held or thrown items such as torches, connected textures through Continuity, grass on block sides through Lambda Better Grass, zoom, and capes. Other optimizations target world updates, chunk loading, world generation, lighting, memory use, networking, entity rendering, and block rendering, with mods including Lithium, Starlight, Ferrite Core, Hydrogen, Krypton, Entity Culling, and Enhanced Block Entities. For easier configuration, the pack includes a mod menu, Cloth Config, and improved Sodium video settings and options.
Written from CurseForge . How we write it
Mods in this pack
The mods of its newest release (Minecraft 1.17.1 · Fabric, 19 Oct 2021). Each check result is for the latest files of that mod, which may not be the version in this pack.
Fabric APIMod · 527.1M downloadsAPassed
Entity CullingMod · 425.1M downloadsAPassed
Iris ShadersMod · 337.4M downloadsAPassed
Mod MenuMod · 244.6M downloadsAPassed
FerriteCoreMod · 243.7M downloadsAPassed
LithiumMod · 242.4M downloadsAPassed
Fabric Language KotlinMod · 218.7M downloadsAPassed
Reese's Sodium OptionsMod · 166.6M downloadsAPassed
ContinuityMod · 145.1M downloadsAPassed
LambDynamicLights - Dynamic LightsMod · 111.3M downloadsAPassed
IndiumMod · 97.8M downloads-Passed
KryptonMod · 82.8M downloadsAPassed
FPS ReducerMod · 73.4M downloadsBPassed
LazyDFUMod · 43.3M downloads-Passed
Enhanced Block EntitiesMod · 43.1M downloadsCPassed
Starlight (Fabric)Mod · 38.9M downloads-Passed
CapesMod · 37.2M downloadsAPassed
Better Biome BlendMod · 36.8M downloadsAPassed
Cloth Config API (UNUSED)Mod · 13.5M downloads-Passed
Smooth Boot (Fabric)Mod · 12.5M downloads-Passed
LambdaBetterGrassMod · 11.5M downloadsAPassed
Logical ZoomMod · 5.1M downloadsAPassed
Better Sodium Video Settings ButtonMod · 2.9M downloadsCPassed
ResolutionControl+Mod · 1M downloadsDPassedDetails
- Creator
- what42pizza
- License
- Not known
- Downloads
- 55K
- Created
- 19 Oct 2021
- Official page
- CurseForge
Security
No harmful code found in its mods
We checked all 24 mods and the files in the pack itself, without running them.
Why we show this: a modpack installs the files of its mods, and each mod runs on your computer like any program. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: a modpack has no grade of its own, and each mod's result counts in that mod's grade.
How we checked
- Its projects24 mods
- Files in the pack itself1 mod jar.
Privacy
3 mods send something about you
We read the code of all 24 of its mods, without running it.
Why we show this: a modpack runs the code of its mods, and a mod can send things about you over the internet, like your player name or your login. Contacting an address to check for updates or download files sends nothing about you. Not in the grade: sending data can be normal for what a mod does.
How we checked
- Go online onlyTheir code contacts a web address, for example to check for updates. We found nothing it sends about you.1 mod
- Send nothingTheir code contacts no web address.20 mods
AI
AI used in 1 of the 23 mods we checked
We found an AI tool in it, or its author declared AI content.
1 mod is not checked yet.
Made with AI: not checked yet
We have not looked for AI tools in the pack itself yet.
Why we show this: some players and servers avoid projects made with AI, and AI in the game can send what you write to an online service. Not in the grade: using AI does not tell whether a project works well or is kept up to date.
How we checked
- Author on ModrinthThe disclosure form on Modrinth. Since 13 Aug 2026, Modrinth's rules require it when a substantial part of the code is AI output, when an asset is mainly AI output, or when the project or its page relies on generative AI.Not on Modrinth.
- Description and changelogsThe description, project page and newest changelogs: sentences saying an AI tool was used, and text pasted from an AI chat.Nothing found in the descriptionChangelogs not read yet
- Its filesFiles that AI coding tools leave behind (like AGENTS.md), and the texts inside the files you download.Not read yet
- Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.Not read yet
Compatibility
See the file in ReleasesPoint at or tap a version to see its loaders.