- Loaders
- FabricForgeOrnithe
- Downloads on Modrinth
- 1.7M
- Followers on Modrinth
- 35
- versions
- 125
- Updated
- October 23, 2026Oct 23
- Published
- in 2022
At a glance
Install in the game only; not needed on the server
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

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.
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.
FAQ
How to install PolySprint (Toggle Sprint / Sneak)?
Install Fabric for your Minecraft version, download PolySprint (Toggle Sprint / Sneak) for the same version and loader, put the file into the mods folder and launch the game with the loader profile.
Which Minecraft versions does PolySprint (Toggle Sprint / Sneak) support?
PolySprint (Toggle Sprint / Sneak) has builds for Minecraft 1.21.1, 1.21.4–1.21.5, 1.21.8, 1.21.10–26.3 ….
Is PolySprint (Toggle Sprint / Sneak) needed on the server?
Client only — no need to install it on the server