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Message Encryption

by EpicPix

Message Encryption lets players send end-to-end encrypted private messages, so only the chosen recipient can read them, once the recipient also has the mod installed.

FabricQuiltClient-side onlyGNU Lesser General Public License v3.0 onlyOpen source1.20 – 26.3

What it does

The mod encrypts a chat message on the sender's client before it leaves, and decrypts it only on the recipient's client. Messages are protected end to end, so the server relays only ciphertext. An encrypted conversation needs the recipient to install the mod too, because they must hold the key to read the text.

The msg command is modified so the mod tries to send an encrypted message automatically when the recipient is set up for it. A separate emsg command sends only encrypted messages, and nmsg uses the vanilla message command for plain text. Replies to an encrypted message can be sent with r, the same way a standard reply works, and the mod adds encrypted replies alongside it. Where the server runs its own messaging system, the server's command handling is used for encrypted traffic.

Encryption is built into the client, so the mod is client-side only and changes nothing on the server side. Files target game versions 1.20 – 26.3 on Fabric and Quilt, with Cloth Config API and Fabric API required, and Mod Menu optional. The mod is open source under the GNU Lesser General Public License v3.0 only, and the source code and issue tracker are public.

Key features

  1. End-to-end encryption

    Private messages are encrypted before sending and readable only by the intended recipient.

  2. Automatic encrypted msg

    The msg command tries to send an encrypted message on its own when the recipient supports it.

  3. Dedicated emsg command

    emsg sends only encrypted messages, while nmsg keeps the vanilla message command for plain text.

  4. Encrypted replies

    Replies to encrypted messages are sent through r or an encrypted reply command, staying encrypted.

  5. Non-premium account support

    Players on non-premium accounts can exchange encrypted messages as well.

Compatibility

Latest build for each game version and loader.

26.x5 of 5 versions with builds
26.32.1.0+26.3Not available
26.22.1.0+26.2Not available
26.1.22.1.0+26.1Not available
26.1.12.1.0+26.1Not available
26.12.1.0+26.1Not available
1.21.x12 of 12 versions with builds
1.21.112.1.0+1.21.11Not available
1.21.102.1.0+1.21.92.1.0+1.21.9
1.21.92.1.0+1.21.92.1.0+1.21.9
1.21.82.1.0+1.21.62.1.0+1.21.6
1.21.72.1.0+1.21.62.1.0+1.21.6
1.21.62.1.0+1.21.62.1.0+1.21.6
1.21.52.1.0+1.21.42.1.0+1.21.4
1.21.42.1.0+1.21.42.1.0+1.21.4
1.21.32.1.0+1.21.22.1.0+1.21.2
1.21.22.1.0+1.21.22.1.0+1.21.2
1.21.12.1.0+1.212.1.0+1.21
1.212.1.0+1.212.1.0+1.21
1.20.x7 of 7 versions with builds
ReleaseBetaAlphaNot available

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

Requirements

Dependencies declared by the latest file for each loader.

Required 2

Fabric APILightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.
Required
Cloth Config APIConfiguration Library for Minecraft Mods
Required

Optional 1

Mod MenuAdds a mod menu to view the list of mods you have installed.
Optional

How it compares

Full comparison

PGP-Chat is client-side only and open source under the GNU General Public License v3.0 only, with files for 26.1 – 26.2 on Fabric. Simple Chat Encryption is also client-side only, but it is not open source, is released under All rights reserved, and covers 26.2 – 26.3 on Fabric. Opaque Chat runs on Fabric and Quilt for 1.21.11 only and is open source under the GNU General Public License v3.0 only.

ModLoadersGame versionsEnvironmentUpdated
Message EncryptionFabric and Quilt1.20 – 26.3Client-side only2026-10-04
PGP-ChatFabric26.1 – 26.2Client-side only2026-06-30
Simple Chat EncryptionFabric26.2 – 26.3Client-side only2026-09-20
Opaque ChatFabric and Quilt1.21.11Client-side only2026-08-01

Questions

Does Message Encryption need Fabric API?

Yes. Fabric API and Cloth Config API are both required dependencies, and Mod Menu is optional.

Can Message Encryption be used on Quilt?

Yes. The mod publishes Quilt files, and the latest Quilt file is 2.1.0+1.21.9 for 1.21.10, released 2025-11-14.

Does the recipient need the mod to read an encrypted message?

Yes. An encrypted conversation requires the recipient to install the mod, since they must hold the key to decrypt the text.

In the catalog

Message Encryption is one of 5,392 Social mods on ModsFinder, and one of 4,084 Social mods for Fabric. 8,071 mods support Minecraft 26.3.

Social mods5,392Fabric modsMods for 26.38,071

More from EpicPix

All projects
CCCustom Capes1.18.2 – 26.3Function Compiler1.19.4 – 1.21.4LTLanguage Translator1.20 – 26.3Command Profiler1.21.9 – 26.3BIBetter Item Frame Cycling1.20.1 – 1.20.2

Similar mods

Simple Voice Chat1.8.8 – 26.3No Chat Reports1.19 – 26.3Chat Heads1.16 – 26.3Essential Mod1.8.9 – 26.3More Chat History1.16.5 – 26.3e4mc1.17 – 26.3

What the author says

This mod lets you encrypt messages end-to-end. This mod modifies the /msg command to automatically try to send encrypted messages. You can use /nmsg to send using the vanilla message command, or you can use /emsg to only send encrypted messages.
EpicPix, on the Modrinth page

Official listing

Owner
EpicPix
Published
2023-08-08
Updated on Modrinth
2026-10-04
Facts verified
2026-10-15

Tags

SocialUtility
Open on ModrinthCompare