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mod

JEIOptimizerMinecraft mod for 26.2

15× faster JEI ingredient filter build — drastically reduces "Joining world..." wait time on big modded servers.

newest supported release 26.2Mc AddonsBug FixesPerformance
Latest version
jeioptimizer-26.1.2-1.2.1-29.47
Minecraft
1.19.2 to 26.2
Java
Java 25+
Loaders
Forge, NeoForge
Licence
not stated
Downloads
513.8k
Updated
3 d ago
Available on
CurseForge

Minecraft versions

Every version JEIOptimizer declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
26.2Forge, NeoForge25+declared16 Jun 2026
26.1.2NeoForge, Forge25+declared9 Apr 2026
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.1Forge, NeoForge17+declared12 Jun 2023
1.19.2NeoForge, Forge17+declared5 Aug 2022

Download

From JEIOptimizer’s own host. Nothing is re-hosted here.

Browse 39 indexed releases

For Minecraft 26.2

Choose the loader you use before downloading.

  • NeoForge

    jeioptimizer-26.2-1.2.0-30.38 · 25 Sept 2026 · jeioptimizer-26.2-1.2.0-30.38.jar

    Get NeoForge

Most recently published release

jeioptimizer-26.1.2-1.2.1-29.47release25 Oct 2026

jeioptimizer-26.1.2-1.2.1-29.47.jar · 26 KB · for 26.1.2 · NeoForge

Download this release
91ddf79f3613…
Older versions24
  • jeioptimizer-1.20.1-1.2.5-15.7425 Oct 20261.20.126 KB4be7f729b384…Get
  • jeioptimizer-1.20.1-1.2.4-15.7421 Oct 20261.20.126 KB544824ba62ef…Get
  • jeioptimizer-1.21.1-1.2.1-19.6419 Oct 20261.21.126 KBb508d115e66a…Get
  • jeioptimizer-1.20.1-1.2.2-15.626 Oct 20261.20.126 KB38fc9f5005fc…Get
  • jeioptimizer-26.2-1.2.0-30.3825 Sept 202626.226 KBaf990dff083f…Get
  • jeioptimizer-26.1.2-1.2.0-29.4325 Sept 202626.1.226 KB5344be902f7f…Get
  • jeioptimizer-1.21.1-1.2.0-19.5613 Sept 20261.21.126 KB11cb78f927e5…Get
  • jeioptimizer-1.20.1-1.2.1-15.5913 Sept 20261.20.132 KB41c8fcb5834c…Get
  • jeioptimizer-1.20.1-1.2.0-15.576 Sept 20261.20.131 KB187c263e31ac…Get
  • jeioptimizer-26.2-1.1.2-30.306 Sept 202626.224 KB21bf80c965fd…Get
  • jeioptimizer-26.1.2-1.1.2-29.356 Sept 202626.1.224 KBe4902e8c01cf…Get
  • jeioptimizer-1.21.1-1.1.2-19.536 Sept 20261.21.124 KB2a0b38e37803…Get
  • jeioptimizer-1.20.1-1.1.4-15.576 Sept 20261.20.124 KB3cab83db69b0…Get
  • jeioptimizer-1.20.1-1.1.3-15.4928 Aug 20261.20.124 KB60d4593d9a17…Get
  • jeioptimizer-1.20.1-1.1.2-15.485 Aug 20261.20.124 KB8f22942daf78…Get
  • jeioptimizer-1.20.1-1.1.1-15.273 Aug 20261.20.123 KB125330e2729a…Get
  • jeioptimizer-1.20.1-1.1.0-15.2129 Jul 20261.20.128 KB317 downloads7e3ba0c83457…Get
  • jeioptimizer-1.21.1-1.1.0-19.4229 Jul 20261.21.124 KBa9a4e4675ddd…Get
  • jeioptimizer-26.1.2-1.1.0-29.2029 Jul 202626.1.224 KB4792bd2e1ecc…Get
  • jeioptimizer-26.2-1.1.0-30.1529 Jul 202626.224 KB60407c997fc9…Get
  • jeioptimizer-1.21.1-1.0.7 for JEI 19.3918 Jul 20261.21.129 KB1.5k downloads06869fb749e8…Get
  • jeioptimizer-26.1.2-1.0.513 Jul 202626.1.229 KB30 downloads779311204d43…Get
  • jeioptimizer-26.2-1.0.513 Jul 202626.229 KB065d4fed0977…Get
  • jeioptimizer-1.21.1-1.0.6 for JEI 19.3813 Jul 20261.21.129 KB688 downloads860a26cb3c46…Get

Frequently asked

Does JEIOptimizer work on Minecraft 26.2?

Yes. 26.2 is the newest Minecraft version JEIOptimizer declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does JEIOptimizer support?

Everything the author has declared, from 1.19.2 up to 26.2. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does JEIOptimizer support?

Forge, NeoForge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for JEIOptimizer?

Among the supported Minecraft releases above, the highest recorded requirement is Java 25 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

How do I install JEIOptimizer?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download JEIOptimizer safely?

Start with the author's page on CurseForge, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

GeckoLibA 3D animation library for entities, blocks, items, armor, and more!BookshelfAn open source library for other mods!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.

Details from CurseForge, where the author last updated it on 4 Nov 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .