FFRAMESHIFT
Free & open source · Fabric 1.21.1

One key.
Instant low graphics.

A tiny Fabric mod that drops your render settings the moment you need the frames — then puts everything back exactly how it was.

Download v1.0.0 · free View modules ›
No account needed No telemetry Restores your settings Open source
Every laggy world. Eliminated.
Free forever Instant download Regular updates Open source on GitHub
MODULES

Explore what toggles.

Everything below flips on and off with one keypress.
Performance

Performance Mode

Drops render distance and graphics quality the instant you need headroom.

Render DistanceGraphics ModeParticles
See setup ›
Visuals

Visual Cleanup

Cuts clouds, smooth lighting, and entity shadows — the effects that quietly cost the most frames.

CloudsSmooth LightingEntity Shadows
See setup ›
Control

One-Key Toggle

Right Shift flips everything at once and remembers your normal settings so nothing is lost.

Right ShiftAuto-restoreAction Bar Alert
See setup ›
★

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Free, open source, and always will be.

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SETUP

Install in three steps.

1

Install Fabric Loader for your Minecraft version.

2

Drop Fabric API and frameshift.jar into your .minecraft/mods folder.

3

Launch the game, load a world, press Right Shift any time.