ModsFinder

Bypass Fabric Check

by tlwsy

Bypass Fabric Check lets vanilla clients join a Fabric server by skipping the Fabric handshake that normally blocks them.

FabricServer-side onlyGNU General Public License v3.0 or laterOpen source1.21 – 26.3

What it does

On a Fabric server, the handshake step sends a configuration task to each connecting player, and a client without Fabric cannot complete it. The mod intercepts that task for non-local players, so a vanilla client can connect directly to the server. Friends without any mods can then join a Fabric host without installing anything.

The mod is server-side only: the host or server needs it installed, and clients need nothing extra. Commands let a server owner turn the bypass on or off while the server is running. The project is published for Fabric only, with 17 release versions 1.21 – 26.3, and the latest file is 1.0.11 for 26.3. The code is open source under the GNU General Public License v3.0 or later, and the source code and issue tracker are public.

Vanilla Compatibility is listed as a companion, and the author notes it works alongside this mod. Bypass Fabric Check was first published on 2025-12-27 and last updated on 2026-10-07.

Key features

  1. Handshake bypass

    Skips the Fabric handshake for non-local players, so vanilla clients can reach a Fabric server.

  2. Intercepted configuration task

    Catches the FabricConfigurationTask the server sends to players and lets vanilla clients pass.

  3. Direct friend connections

    Friends without mods can connect straight to a Fabric host, with no extra setup on their side.

  4. Runtime toggle

    A command switches the bypass feature on or off while the server keeps running.

Compatibility

Latest build for each game version and loader.

26.x5 of 5 versions with builds
26.31.0.11
26.21.0.11
26.1.21.0.11
26.1.11.0.11
26.11.0.11
1.21.x12 of 12 versions with builds
1.21.111.0.7
1.21.101.0.7
1.21.91.0.7
1.21.81.0.7
1.21.71.0.7
1.21.61.0.7
1.21.51.0.7
1.21.41.0.7
1.21.31.0.7
1.21.21.0.7
1.21.11.0.7
1.211.0.7
ReleaseBetaAlphaNot available

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

Use cases

Hosting for friends

A player running a Fabric server can let friends join with a vanilla client without asking them to install mods.

Mixed-client servers

A server owner can accept vanilla players alongside modded ones, using the commands to enable or disable the bypass.

Who it’s for: Server owners running Fabric who want vanilla clients to connect. Players only need the mod if they are hosting or running the server themselves.

Questions

Does Bypass Fabric Check have to be installed on clients?

No. The mod is server-side only, so the host or server needs it and clients need nothing extra.

Which Minecraft versions does Bypass Fabric Check support?

Its Fabric files cover 17 release versions, 1.21 – 26.3. The latest file is 1.0.11 for 26.3, published on 2026-10-07.

Can the bypass be turned off without restarting the server?

Yes. Commands enable or disable the bypass feature dynamically while the server is running.

In the catalog

Bypass Fabric Check is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 8,071 mods support Minecraft 26.3.

Optimization mods3,545Fabric modsMods for 26.38,071

More from tlwsy

All projects
MappyWall1.21 – 26.2

Similar mods

Sodium1.16.3 – 26.3Iris Shaders1.16.5 – 26.3Entity Cullingb1.7.3 – 26.3FerriteCore1.16.5 – 26.3ImmediatelyFast1.18.2 – 26.3Sodium Extra1.16.2 – 26.3

Official listing

Owner
tlwsy
Published
2025-12-27
Updated on Modrinth
2026-10-07
Facts verified
2026-10-15

Tags

OptimizationUtility
Open on ModrinthCompare