ThreadTweak
ThreadTweak: A focused open-source mod for tuning Minecraft executor threads and priorities. Ranked #20 of 24 in Minecraft Performance Mods by our editors (7.3/10); pricing: Free plan; best for custom Minecraft thread scheduling.
At a glance
- Editor score7.3 / 10
- PricingFree plan
- Best forCustom Minecraft thread scheduling
- Free planYes
- Paid fromFree
- Mod loaderMulti-loader
- Facts checked20 Sep 2026
Where it wins
- Changes Minecraft executor thread counts and individual thread priorities
- Supports client-side and server-side environments
- Open-source mod with configurable settings and broad listed version coverage
Where it doesn't
- Focused on thread scheduling rather than broad optimization controls
- Version support is limited to the listed Minecraft ranges
- Configuration requires choosing thread counts and priorities yourself
Our verdict on ThreadTweak
ThreadTweak is an open-source Minecraft Java Edition mod for players and server operators who want direct control over CPU thread scheduling. It changes the number of threads used by Minecraft executors and the priority assigned to individual threads. Configurable mod settings support both client-side and server-side environments, making it relevant to users tuning how Minecraft allocates processing work. ThreadTweak is also a maintained continuation of Smooth Boot for Minecraft versions 1.20 and later.
The mod is free and open source, with no paid tiers to compare. Its compatibility spans the listed Minecraft ranges: 1.20–1.20.2, 1.20.4–1.20.6, 1.21–1.21.1, 1.21.3–1.21.11. ThreadTweak supports Fabric and Quilt, and its category specification identifies it as multi-loader. This combination gives users a focused way to apply thread-count and priority settings across supported client and server environments, rather than tying the mod to a single side of play.
ThreadTweak’s main strength is control over executor threads and individual thread priorities. That focus is also its boundary: the published feature scope centers on CPU thread scheduling, not a broader set of Minecraft optimization controls. Users seeking targeted scheduling adjustments should find the feature set aligned with that goal, while those looking for a wider optimization mod should consider a product with broader verified coverage. Choose ThreadTweak when thread allocation and priority tuning are the priority; look elsewhere when you need more extensive performance features.
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ThreadTweak pricing
ThreadTweak fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Mod loader | Multi-loader |
| Performance focus | Not verified |
| Client/server scope | Both |
| Minecraft versions | 1.20–1.20.2; 1.20.4–1.20.6; 1.21–1.21.1; 1.21.3–1.21.11 |
| Requires Sodium | Not verified |
| Dedicated server support | Not verified |
| Support | Community, Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | modrinth.com |
| Facts checked | 20 Sep 2026 |
Alternatives to ThreadTweak
- 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 ThreadTweak alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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