Adaptive tuning
Adjust simulation distance as performance changes, with optional entity-distance and particle fallbacks.
Explore adaptive tuningFabric performance mod
A smoother world, without the noise.
Chlorine fine-tunes the work happening behind your Minecraft world—so busy moments feel a little less busy.
For Fabric · Minecraft 26.2 and 26.3 · Free and open source
Frame rate144 FPS
Simulation distance12 chunks
Move your cursor across the world
01 Thoughtful performance
02 Every feature is optional
03 Your settings stay yours
01 Thoughtful performance
02 Every feature is optional
03 Your settings stay yours
A lighter touch
Keep the details. Spend less time waiting.
From distant mob AI to bursts of particles and sounds, Chlorine offers small, configurable adjustments to the work that can add up during play.
Calmer crowds
Throttle distant mob AI and merge nearby item drops and XP orbs through independent settings.
Explore world featuresQuieter bursts
Set budgets for sounds and particles, and save power when the game window is unfocused.
Explore comfort featuresSee it work
Play with the ideas. Watch what changes.
Each demo is a small model of how a Chlorine setting behaves, so you can feel the idea before you install. They're illustrations, not benchmarks.
Built around the busy bits
Less background strain. More room to play.
Minecraft has a lot going on at once. Chlorine focuses on the parts you can tune, without trying to replace the systems that already do their job well.
Simulation that can scale
Give the world a little breathing room when frames dip, then let it recover when things settle.
Distant activity, handled gently
Throttle distant mob decision-making while leaving nearby mobs and their physics alone.
Effects with a sensible budget
Keep bursts of sounds and particles from piling up all at once, one optional setting at a time.
Power saving when you step away
Lower the FPS cap while the game is unfocused, with an option to hide clouds too.
Steadier frame times
Spread light-update bursts and the periodic autosave over several frames, and skip far-away detail you can't see anyway.
Simple by design
Your game. Your settings. Your call.
Install
Add Chlorine to your Fabric instance alongside Fabric API and Cloth Config.
Choose
Open the config screen or edit the JSON file. Every feature can be switched off.
Fine-tune
Start with the defaults and adjust gradually for your world and hardware.
A good neighbor
Fits into the mods you already use.
Chlorine 1.0.8 works directly with Sodium's 26.3 renderer while the other companions remain optional.
Sodium · required for 1.0.3+LithiumFerriteCore
EntityCullingImmediatelyFastIris
Sodium, Fabric API, and Cloth Config are required for 1.0.3+ · other companions are optional
Good to know
A few quick answers.
Does Chlorine change render distance?
No. Its adaptive tuning works with simulation distance; render distance is intentionally left alone to avoid expensive chunk render graph rebuilds.
Do I need another performance mod?
For Chlorine 1.0.3+ on Minecraft 26.3, Sodium 0.9.2 or newer is required because the workload governor integrates with Sodium's renderer. Lithium, FerriteCore, EntityCulling, ImmediatelyFast, and Iris remain optional.
Will it improve performance in every world?
Results depend on your hardware, world, entity count, and mod setup. Chlorine provides configurable tools, not a universal FPS guarantee.
Ready when you are
Find your version. Make it yours.
Pick Minecraft 26.2 or 26.3. Downloads are linked directly to the latest matching GitHub release.
Choose a version