ModsFinder

command block lengthener

by nemnoob2

Command Block Lengthener raises the text limit of command blocks on Fabric, so a single command can be much longer than the vanilla cap.

FabricClient and serverAll rights reserved1.21.4 – 26.2

What it does

The mod raises the character limit of command blocks from the vanilla 32,500 characters to a maximum of 2,147,483,647, the largest value a 32-bit signed integer can hold. This suits players who want a very long command or an NBT item write that would otherwise exceed the default limit.

Its environment is client and server, and the author describes the client-side part as meant for the standard Minecraft launcher, with the server-side use intended for online play. The files target Fabric only, and the latest build 1.1.01 covers 26.2. The license is All rights reserved, so the mod is not open source.

Key features

  1. Higher command length

    Command blocks accept text up to 2,147,483,647 characters instead of the vanilla 32,500.

  2. Long NBT item commands

    Commands that write complex NBT data for an item can be entered in one command block, where the default limit would reject them.

  3. Client-side part

    The client-side part is meant for the standard Minecraft launcher, as the author describes it.

Compatibility

Latest build for each game version and loader.

26.x4 of 4 versions with builds
26.21.1.01
26.1.21.1
26.1.11.1
26.11.1
1.21.x8 of 8 versions with builds
1.21.111.0.0
1.21.101.2.0
1.21.91.2.0
1.21.81.2.0
1.21.71.2.0
1.21.61.2.0
1.21.51.2.0
1.21.41.2.0
ReleaseBetaAlphaNot available

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

How it compares

Full comparison

No Enchant Command Limit is a Fabric mod for 1.21 – 26.3 that is server-side only and open source under the GNU General Public License v3.0 or later. LAN Player Limit Modifier (LPLM) is a Fabric mod for the same range, client and server, under the Creative Commons Attribution Non Commercial Share Alike 4.0 license and not open source. Command Block Lengthener is client and server and is All rights reserved.

ModLoadersGame versionsEnvironmentUpdated
command block lengthenerFabric1.21.4 – 26.2Client and server2026-07-31
No Enchant Command LimitFabric1.21 – 26.3Server-side only2026-02-21
LAN Player Limit Modifier (LPLM)Fabric1.21 – 26.3Client and server2026-06-05

Questions

Does Command Block Lengthener need to be installed on the server?

Yes. The environment is client and server, and the author describes the server-side use as intended for online play, so the server and each player need the mod.

Which game versions does Command Block Lengthener support?

The files cover 12 release versions in the range, and the latest Fabric file is 1.1.01 for 26.2, published on 2026-07-31.

Does the mod work with custom clients?

The author notes that custom clients are supported, naming a third-party launcher client as one example.

In the catalog

command block lengthener is one of 29,952 Game mechanics mods on ModsFinder, and one of 19,630 Game mechanics mods for Fabric. 13,894 mods support Minecraft 26.2.

Game mechanics mods29,952Fabric modsMods for 26.213,894

Similar mods

Better Third Person1.16.4 – 1.21.8Sounds1.20 – 26.3Cut Through1.18.2 – 26.3Bad Wither No Cookie - Reloaded1.12.2 – 1.21.10Carpet1.14.4 – 26.3Client Tweaks1.12.2 – 26.3

What the author says

Have you ever wanted to use an extremely long command? Maybe you wanted to create a complex NBT item or write a command that exceeds Minecraft's default command block limit. Command Block Lengthener increases the command block text limit from 32,500 characters to 2,147,483,647 characters, the maximum value supported…
nemnoob2, on the Modrinth page

Official listing

Owner
nemnoob2
Published
2026-07-20
Updated on Modrinth
2026-07-31
Facts verified
2026-10-15

Tags

Game mechanicsUtility
Open on ModrinthCompare