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PolySprint Mod for Minecraft 26.3

Toggle sprint and sneak mod. By Polyfrost, best with OneClient.

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Updated
Updated 23.10.2026

PolySprint

PolySprint is a toggle sprint and toggle sneak mod, with a HUD that tells you which state you're in.

  • Toggle sprint and sneak with a single press, and keep the toggle after a restart
  • Bind separate toggle keys, so the normal keys still work for holding
  • Turn off double-tap W sprinting
  • Stop sneaking automatically when you start flying
  • "Fly Boost" speeds up creative flight while you hold sprint (singleplayer only)
  • On modern versions, the toggles stay in sync with the Sprint and Sneak options in Minecraft's Controls menu
PolySprint — screenshot 3

HUD

The HUD shows a line like [Sprinting (toggled)], and tells you whether you are holding the key, toggled it, or the game started it for you. It covers flying and riding too. Every text can be changed, and you move and scale it in the OneConfig HUD editor.

You can use /polysprint to open your settings.

PolySprint — screenshot 4

Supported versions

  • Minecraft 1.8.9 on Ornithe.
  • Minecraft 1.21.1-26.3 on Fabric.

PolySprint needs OneConfig and Fabric Language Kotlin. The Fabric builds also need Fabric API.

Support

  • Report bugs and ask questions on the Polyfrost Discord.
  • Check Polyfrost Status if a Polyfrost service is down.
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How to install PolySprint

With Millida Launcher

  1. Install Millida Launcher

    The launcher is free: download it at millida.net/launcher and sign in with any nickname.

  2. Click “Install” on this page

    The launcher opens and installs the mod for Minecraft 1.8–26.3 on Fabric or Forge automatically, together with its dependencies: OneConfig, Fabric Language Kotlin, Fabric API.

  3. Launch the game

    A profile with it appears in the launcher: click “Play”.

Manually

  1. Install Fabric or Forge

    The loader must match the game version of the mod file, for example Minecraft 26.3. After installing it, a separate profile appears in your launcher.

  2. Download the file for your version

    In the version list above, pick the file polysprint-1.3.3+26.3.jar (99 KB) for your game version and loader.

  3. Put it in the mods folder

    The folder is inside .minecraft (Windows: %appdata%\.minecraft\mods). If it does not exist, create it. Required dependencies go there too: OneConfig, Fabric Language Kotlin, Fabric API.

  4. Launch the loader profile

    Open “Mods” in the main menu: PolySprint should be in the list.

PolySprint works on the player’s side only: there is no need to install it on a server.

Versions

With dependencies

MinecraftLoaderFileDateActions
26.3Fabric26.398.6 KB 1
26.2Fabric26.298.7 KB 1
26.1.2Fabric26.1.298.6 KB 1
1.21.11Fabric1.21.1199.1 KB 2
1.21.10Fabric1.21.1099.1 KB
1.21.8Fabric1.21.898.8 KB
1.21.5Fabric1.21.598.8 KB
1.21.4Fabric1.21.499.2 KB 1

What it needs to run

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Author: PolyfrostLicense: AGPL-3.0-onlySource code

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