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Structure Layout OptimizerMinecraft mod for 26.3

Attempts to optimize the generation of Jigsaw Structures and NBT pieces

newest supported release 26.3World StructuresPerformance
Latest version
Structure Layout Optimizer v1.1.4 (26.3 Fabric)
Minecraft
1.16.1 to 26.3
Java
Java 25+
Loaders
Fabric, NeoForge, Forge
Licence
not stated
Downloads
30.6M
Updated
1 mo ago
Available on
CurseForge

Minecraft versions

Every version Structure Layout Optimizer declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
26.3Fabric, NeoForge, Forge25+declared15 Sept 2026
26.2Forge, NeoForge, Fabric25+declared16 Jun 2026
26.1.2Forge, NeoForge, Fabric25+declared9 Apr 2026
26.1.1NeoForge, Fabric, Forge25+declared1 Apr 2026
26.1Forge, NeoForge, Fabric25+declared24 Mar 2026
1.21.11Fabric, NeoForge, Forge21+declared9 Dec 2025
1.21.10Fabric, NeoForge, Forge21+declared7 Oct 2025
1.21.9NeoForge, Forge, Fabric21+declared30 Sept 2025
1.21.8Fabric, NeoForge, Forge21+declared17 Jul 2025
1.21.7Fabric, NeoForge, Forge21+declared30 Jun 2025
1.21.6Fabric, NeoForge, Forge21+declared17 Jun 2025
1.21.5Fabric, NeoForge, Forge21+declared25 Mar 2025
1.21.4Fabric, NeoForge, Forge21+declared3 Dec 2024
1.21.1Fabric, NeoForge, Forge21+declared8 Aug 2024
1.21Forge, Fabric, NeoForge21+declared13 Jun 2024
1.20.1Forge, NeoForge, Fabric17+declared12 Jun 2023
1.19.2Fabric, NeoForge, Forge17+declared5 Aug 2022
1.18.2Fabric, NeoForge, Forge17+declared28 Feb 2022
1.16.5Fabric, NeoForge, Forge8+declared14 Jan 2021
1.16.1Forge, NeoForge, Fabric8+declared24 Jun 2020

Download

From Structure Layout Optimizer’s own host. Nothing is re-hosted here.

Browse 42 indexed releases

For Minecraft 26.3

Choose the loader you use before downloading.

  • Fabric

    Structure Layout Optimizer v1.1.4 (26.3 Fabric) · 16 Sept 2026 · structure_layout_optimizer-1.1.4+26.3-fabric.jar

    Get Fabric

  • NeoForge

    Structure Layout Optimizer v1.1.4 (26.3 Neoforge) · 16 Sept 2026 · structure_layout_optimizer-1.1.4+26.3-neoforge.jar

    Get NeoForge

Most recently published release

Structure Layout Optimizer v1.1.4 (26.3 Fabric)release16 Sept 2026

structure_layout_optimizer-1.1.4+26.3-fabric.jar · 68 KB · for 26.3 · Fabric

Download this release
ce6a03a92729…
Older versions24
  • Structure Layout Optimizer v1.1.4 (26.3 Neoforge)16 Sept 202626.367 KBaf8c3f3462ca…Get
  • Structure Layout Optimizer v1.1.5 (1.21.9 Neoforge)17 Jun 20261.21.10, 1.21.968 KB27 downloads758dfa38f068…Get
  • Structure Layout Optimizer v1.1.4 (26.1 Neoforge)25 Mar 202626.2, 26.1.2, 26.1.1, 26.168 KB24.4k downloads28c061953408…Get
  • Structure Layout Optimizer v1.1.4 (26.1 Fabric)25 Mar 202626.2, 26.1.2, 26.1.1, 26.170 KB91.8k downloads4a0fc84879fe…Get
  • Structure Layout Optimizer v1.1.4 (1.21.11 Neoforge)9 Jan 20261.21.1168 KB51 downloads573ede863c25…Get
  • Structure Layout Optimizer v1.1.4 (1.21.11 Fabric)9 Jan 20261.21.1169 KB02b39ffcae31…Get
  • Structure Layout Optimizer v1.1.4 (1.21.9 Neoforge)9 Jan 20261.21.10, 1.21.968 KB023d494acdff…Get
  • Structure Layout Optimizer v1.1.4 (1.21.9 Fabric)9 Jan 20261.21.10, 1.21.969 KBa0cfecdd65cc…Get
  • Structure Layout Optimizer v1.1.4 (1.21.6 Neoforge)9 Jan 20261.21.8, 1.21.7, 1.21.668 KBafe3a052338f…Get
  • Structure Layout Optimizer v1.1.4 (1.21.6 Fabric)9 Jan 20261.21.8, 1.21.7, 1.21.669 KB05dc716d65bb…Get
  • Structure Layout Optimizer v1.1.4 (1.21.5 Neoforge)9 Jan 20261.21.568 KB3498984f37c0…Get
  • Structure Layout Optimizer v1.1.4 (1.21.5 Fabric)9 Jan 20261.21.569 KB62c037c075db…Get
  • Structure Layout Optimizer v1.1.4 (1.21.4 Neoforge)9 Jan 20261.21.468 KB12b9ad4f6fba…Get
  • Structure Layout Optimizer v1.1.4 (1.21.4 Fabric)9 Jan 20261.21.469 KB9b12a4e69347…Get
  • Structure Layout Optimizer v1.0.12 (neoforge 1.21.1)9 Jan 20261.21.160 KB052c31cb9881…Get
  • Structure Layout Optimizer v1.0.12 (fabric 1.21.1)9 Jan 20261.21.161 KB2ca2f8650794…Get
  • Structure Layout Optimizer v1.1.3 (1.21.11 Neoforge)10 Dec 20251.21.1168 KB1.1k downloadsfc2827ead493…Get
  • Structure Layout Optimizer v1.1.3 (1.21.11 Fabric)10 Dec 20251.21.1169 KB1 download5c7092734689…Get
  • Structure Layout Optimizer v1.1.3 (1.21.9 Neoforge)22 Oct 20251.21.10, 1.21.968 KB22 downloads1dfb462a3327…Get
  • Structure Layout Optimizer v1.1.3 (1.21.9 Fabric)22 Oct 20251.21.10, 1.21.969 KB31cfd15be743…Get
  • Structure Layout Optimizer v1.1.3 (1.21.6 Neoforge)22 Oct 20251.21.8, 1.21.7, 1.21.668 KBf5d63b8fa499…Get
  • Structure Layout Optimizer v1.1.3 (1.21.6 Fabric)22 Oct 20251.21.8, 1.21.7, 1.21.669 KBa8e1fa7f0591…Get
  • Structure Layout Optimizer v1.1.3 (1.21.5 Neoforge)22 Oct 20251.21.568 KB664236a57fbd…Get
  • Structure Layout Optimizer v1.1.3 (1.21.5 Fabric)22 Oct 20251.21.569 KB6fd96e335807…Get

Frequently asked

Does Structure Layout Optimizer work on Minecraft 26.3?

Yes. 26.3 is the newest Minecraft version Structure Layout Optimizer 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 Structure Layout Optimizer support?

Everything the author has declared, from 1.16.1 up to 26.3. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does Structure Layout Optimizer support?

Fabric, NeoForge, Forge. 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 Structure Layout Optimizer?

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 Structure Layout Optimizer?

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 Structure Layout Optimizer 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.

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Details from CurseForge, where the author last updated it on 16 Sept 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? .