How do I install One Block Swimming?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does One Block Swimming work with?

The listing gives Minecraft 1.21.4, 1.21.5, 1.21.6, among others. This is the version stated by the author or source site, not something we verified ourselves.

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One Block Swimming

Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.

by S_N00B · on Modrinth

A Server-side mod that allows players to start swimming in one block of water. Free Minecraft Java mod for 1.21.4, 1.21.5, 1.21.6.

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One Block Swimming

A Server-side mod that allows players to start swimming in one block of water

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21.4, 1.21.5, 1.21.6
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

Ships as oneBlockSwimming-0.1.3.jar — drop this file into the mods folder
Download size: 5 KB
Download link checked 12 Oct 2026 — working

These come from our own check of the pack file, not from the source page.

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