ModsFinder

glfw-input

by Shikaru

glfw-input is a client-side Fabric optimization that changes how keyboard and mouse input reaches the game, for players who want less input delay.

FabricClient-side onlyMIT LicenseOpen source1.21.11

What it does

The mod reads input directly through GLFW polling, so key and mouse events reach the game with lower latency. Its input handler override processes those results faster than the default path. Only the client needs it, and a server can run without it. A second change targets the use and attack cooldown. Holding the use button no longer waits for the cooldown to finish, and the action is sent the moment the cooldown ends. The mod is open source under the MIT License and is published for 1.21.11 only, as a beta file for Fabric.

Key features

  1. Direct GLFW polling

    Keyboard and mouse state is polled through GLFW, giving lower input latency than the default handling.

  2. Faster input handling

    An input handler override processes GLFW results sooner, so each event reaches the game without extra waiting.

  3. Instant cooldown use

    Holding use sends the action as soon as the cooldown ends, rather than waiting for a fixed tick delay.

Compatibility

Latest build for each game version and loader.

No stable releases
Every published file is a beta or alpha build.
1.21.111.0.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

How it compares

Full comparison

No Input Lag Tick Rate is also a client-side, open source Fabric mod under the MIT License, published for 1.21.1 – 26.1.2. Input Optimizer is client-side and open source under the GNU Lesser General Public License v3.0 only, with files for 1.21.11 – 26.2. Show me the delay is client-side with a CC0 1.0 Universal license and is not open source, for 1.21.11 only.

ModLoadersGame versionsEnvironmentUpdated
glfw-inputFabric1.21.11Client-side only2026-07-07
No Input Lag Tick RateFabric1.21.1 – 26.1.2Client-side only2026-06-13
Input OptimizerFabric1.21.11 – 26.2Client-side only2026-08-20
Show me the delayFabric1.21.11Client-side only2026-08-26

Questions

Does glfw-input need to be installed on a server?

No. Servers do not need it; each player installs it for their own game.

In the catalog

glfw-input is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 19,862 mods support Minecraft 1.21.11.

Optimization mods3,545Fabric modsMods for 1.21.1119,862

More from Shikaru

All projects
Fast Xp1.21.1 – 1.21.11Shikaru's Crystal Optimizer1.21.11 – 26.2Tnt Minecart Optimizer1.21.1 – 1.21.11Essential PVP Utilities1.21.4 – 1.21.11Fast Projectiles1.21.4 – 1.21.11Improved Movement1.21.11

Similar mods

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What the author says

This mod overrides the input handler to work with GLFW, which results in faster input handling. It also makes holding to use while waiting for a cooldown faster by sending the action the instant the cooldown ends, instead of the random 4-tick delay (this means it can be the first tick, but you could also end up…
Shikaru, on the Modrinth page

Official listing

Owner
Shikaru
Published
2026-07-07
Updated on Modrinth
2026-07-07
Facts verified
2026-10-15

Tags

Game mechanicsOptimizationUtility
Open on ModrinthCompare