Structure Layout Optimizer
Structure Layout Optimizer: A focused server-side mod for reducing Jigsaw generation overhead and template memory use. Ranked #22 of 24 in Minecraft Performance Mods by our editors (7.1/10); pricing: Free plan; best for structure-generation bottlenecks.
At a glance
- Editor score7.1 / 10
- PricingFree plan
- Best forStructure-generation bottlenecks
- Free planYes
- Paid fromFree
- Mod loaderMulti-loader
- Facts checked20 Sep 2026
Where it wins
- Targets Jigsaw matching, shuffling, failed checks, and intersections
- Reduces cached structure-template memory usage
- Open source, MIT licensed, and multi-loader
Where it doesn't
- Its focus is limited to Jigsaw structures and NBT piece handling
- The documented project branch is Minecraft 26.1
- Benefits depend on workloads that generate complex structures
Our verdict on Structure Layout Optimizer
Structure Layout Optimizer is an open-source Minecraft mod for modded environments where Jigsaw structure generation or large NBT structure pieces create performance overhead. It is aimed at server-focused deployments, while the project description also covers singleplayer use. The mod is available as a multi-loader project for Minecraft 26.1 and is published by TelepathicGrunt under the MIT license. Its scope is deliberately narrow: it concentrates on structure layout work rather than presenting a broad set of general Minecraft performance changes.
The technical focus is the mod’s main strength. It uses BoxOctree-based intersection checks, performs earlier bounds checks for large NBT structure pieces, and skips checks for blocked-off Jigsaw blocks. Jigsaw target and facing matching are optimized, while block shuffling and prioritization are streamlined. The mod also avoids repeating failed SinglePoolElement checks, which directly targets repeated work during structure generation. These changes make it a suitable choice when structure-piece intersections, Jigsaw matching, or failed checks are the source of a bottleneck.
Memory handling adds a second useful angle. Optional template-pool element deduplication and reduced memory use for cached structure templates address the cost of retaining structure data, particularly in environments that generate or cache large structures. The tradeoff is breadth: this is not a general-purpose performance suite, and its value is tied to Jigsaw and NBT-heavy workloads. Choose it for a targeted structure-generation optimization on supported Minecraft 26.1 setups; choose another mod when the performance issue lies outside structure layout or template handling.
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Structure Layout Optimizer pricing
Structure Layout Optimizer fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Mod loader | Multi-loader |
| Performance focus | Server |
| Client/server scope | Not verified |
| Minecraft versions | 26.1 |
| Requires Sodium | Not verified |
| Dedicated server support | Not verified |
| Deployment | Self-hosted |
| Support | Community |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | modrinth.com |
| Facts checked | 20 Sep 2026 |
Alternatives to Structure Layout Optimizer
- SodiumA free client mod for broad Minecraft rendering and FPS improvements.9.4
- LithiumA broad, compatibility-focused performance mod without gameplay or visual changes.9.3
- ModernFixA multi-loader performance mod focused on loading, memory use, compatibility, and debugging.9.2
See all Structure Layout Optimizer alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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