Auto Sneak-speedbridge
Auto Sneak-speedbridge holds the sneak key automatically when a player walks toward the edge of a solid block, so the player stays on the block while building.
What it does
The mod is a lightweight Fabric addition that checks the four corners of the player's hitbox each tick. When a corner would extend past a solid block edge, the mod forces sneaking for that moment, which stops the player from falling off while placing blocks in a line. Sneaking is applied instantly, so the player is not slowed while moving along ground that has a clear edge.
Toggling is done with the J key by default, and the binding can be changed in the Options menu. Each change of state is reported in the action bar, showing whether AutoSneak is enabled or disabled, and the feedback is the only visual cue the mod gives.
Installation needs Fabric API. Auto Sneak-speedbridge runs on the client only, so players install it and servers do not need it. Builds are published for Fabric across four game versions, 1.21.8 – 1.21.11, and the code is released under All rights reserved, so it is not open source.
Key features
Automatic edge sneaking
Sneaking is applied when the player approaches an edge block, without the sneak key being held.
Four-corner hitbox check
Each tick the mod tests all four corners of the hitbox against the surrounding solid blocks, so sneaking starts before the player overhangs.
Rebindable toggle
The J key switches the feature on or off, and the key can be remapped in the Options screen.
Action bar feedback
Enabling or disabling the feature shows a message in the action bar, so the current state is visible while building.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Questions
Does Auto Sneak-speedbridge need Fabric API?
Do servers need to install Auto Sneak-speedbridge?
How is AutoSneak turned on and off?
In the catalog
Auto Sneak-speedbridge is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 19,862 mods support Minecraft 1.21.11.
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What the author says
A lightweight Fabric mod that automatically holds the sneak key for you whenever you approach the edge of a block.
Official listing
- Modrinth page
- modrinth.com/mod/auto-sneak
- Owner
- kvapilvaclav0
- Published
- 2026-05-16
- Updated on Modrinth
- 2026-05-16
- Facts verified
- 2026-10-15