OptiFine for NeoForge

What is OptiFine for NeoForge?

OptiFine for NeoForge is a Fabric and NeoForge modpack for Minecraft 1.21.1, published by iFamished on Modrinth since 2025.

The latest release, 1.21.1+1.0 from May 13, 2025, declares 54 mods plus 1 other project such as resource packs or shaders. It has 2 published versions.

With 143K downloads it ranks #147 of the 518 most-downloaded Modrinth modpacks we track, and its authors tag it as kitchen sink, lightweight and optimization.

• Kitchen sink
• Lightweight
• Optimization

Most widely used mods in OptiFine for NeoForge

The latest version declares 55 projects, 54 of them mods. The ones below appear in the most packs we track.

• Cloth Config API
• FerriteCore
• Entity Culling
• Sodium
• Fabric API
• ImmediatelyFast
• Lithium
• Mod Menu
• Iris Shaders
• YetAnotherConfigLib (YACL)
• Fabric Language Kotlin
• [ETF] Entity Texture Features
• [EMF] Entity Model Features
• Sodium Extra
• Reese's Sodium Options
• ModernFix
• Text Placeholder API
• More Culling
• BadOptimizations
• Zoomify (Zoom)
• Fzzy Config
• Krypton
• MidnightLib
• Kotlin for Forge

Full OptiFine for NeoForge mod list

80 more files are bundled inside the pack without a Modrinth project, so we cannot name them.

How its mod list compares

Less common picks: 3 mods found in five or fewer tracked packs.

• Sodium Extra Information
• Better ModList
• Sodium Core Shader Support

Packs with the most mods in common

• OptiFine for Fabric Fabric for 1.21.4 44 mods in common
• Performium Fabric for 26.2 28 mods in common
• Sodium Extra Fabric for 26.1.2 23 mods in common
• GD656极致优化整合包 Fabric for 1.20.1 22 mods in common
• OptiFabric Fabric for 26.3 23 mods in common

What kinds of mods are in OptiFine for NeoForge?

Of its 54 mods, 28 are tagged optimization, 24 utility and 14 library. Mods can carry several tags, so the counts overlap.

• optimization: 28 (52%)
• utility: 24 (44%)
• library: 14 (26%)
• decoration: 7 (13%)
• game mechanics: 4 (7%)
• cursed: 3 (6%)

How big is OptiFine for NeoForge?

With 54 mods, OptiFine for NeoForge has more mods than 51% of the 491 packs we track and fewer mods than 59% of the 86 on Minecraft 1.21.1.

The pack file is 24.9 MB. 31 mods are client-only and 23 also run on a server. Alongside the mods it declares 1 resource pack.

How actively is OptiFine for NeoForge updated?

OptiFine for NeoForge was first published on Jan 16, 2025, and has 2 published versions in total.

The latest release, 1.21.1+1.0, is dated May 13, 2025, 547 days before our data was fetched on Nov 11, 2026. Releases have covered 1 Minecraft version over 117 days.

Staple mods OptiFine for NeoForge includes and leaves out

Across the 325 Fabric packs we track, 15 mods turn up most often. OptiFine for NeoForge includes 14 of them; it leaves out Architectury API.

How much RAM does OptiFine for NeoForge need?

OptiFine for NeoForge needs 6 GB allocated (4 GB minimum). Our estimate from the 54-mod list, not measured.

How to set allocated memory

How to install OptiFine for NeoForge

Search for "OptiFine for NeoForge" in the Modrinth source of your launcher. Pick version 1.21.1+1.0 for Minecraft 1.21.1 (Fabric and NeoForge). Modpack install guide.

How do I make an OptiFine for NeoForge server?

OptiFine for NeoForge is marked as supporting a server-side install, so the server must run the same mods and version as the players.

• Match the version: the latest pack version is 1.21.1+1.0 for Minecraft 1.21.1.
• Loader: Fabric and NeoForge.
• Memory: at least 4 GB (our estimate).

Modpack server guide.

Versions

Newest build for each of 2 Minecraft version and loader pairs.

Official links

• OptiFine for NeoForge on Modrinth (downloads and changelog)
• Discord

Facts on this page come from Modrinth's public API, last fetched Nov 11, 2026. Descriptive text is our own. Spotted an error, or are you the author and want something changed? See disclaimer and takedowns.