ChatSphere

A modern instant-messaging chat mod for Minecraft NeoForge 1.21.1. Replaces vanilla chat with channels, private messaging, emoji, voice rooms, and a full GUI.

Works on the client side — in singleplayer or on vanilla/plugin servers (with "Allow Vanilla Connection" enabled, then restart), it runs in local storage mode. On NeoForge servers, install on both sides for channel sync, private messaging, and voice chat.

Features

Channels — Create public or private channels with invite codes, display names, descriptions, and explore visibility. Browse all public channels from the Explore screen.

Private Messaging — Click any player name in the member list to start a DM. /msg and /tell are also supported.

Command Console — Switch to console mode to run commands directly in the chat interface. Output appears in-session. Arrow keys recall history.

Emoji Picker — 349 emoji from twemoji with category tabs, search, and :shortcode: autocomplete.

Voice Chat — Dual integration with Simple Voice Chat (isolated groups) and PlasmoVoice (broadcast lines). Works with either or both; auto-detected at runtime.

Chat Search — Filter messages in the current conversation. Match count and jump navigation included.

Quote Reply — Right-click any message to copy or quote-reply with context.

Anti-Spam — Duplicate messages collapsed automatically. Configurable server-side.

Member Management — Per-channel admins, mute/unmute, kick, invite system, and ownership transfer.

Full Settings GUI — Dark theme, bubble color and corner radius, per-type notification sounds, icon flash, screen popups, avatar cache, and more.

Server Configuration — In-game config screen for operators. Also available as config/chatsphere-server.toml.

No Chat Reports Compat — NCR security status displayed directly in the UI.

Controls

Configuration

Client — press F7

Server — config/chatsphere-server.toml

Storage

ChatSphere/
├── client/singleplayer/<world>/
├── client/multiplayer/<server>/
└── server/
    ├── channels.json
    └── backups/

Server data auto-backs up every 30 minutes (configurable).

FAQ

Does the mod need to be on the server? It works on the client alone in local mode. Install on both sides to unlock channel sync, private messaging across players, and voice chat.

Which voice chat mods are supported? Simple Voice Chat and PlasmoVoice. Both work simultaneously if installed.

How do I join a channel? Use the → button and enter an invite code, or browse public channels from the Explore screen (search icon next to →).

How do I create a channel? Click + next to the Channels header, or type #name in the input and press Enter.

Where is my data stored? Client data in ChatSphere/client/ per world/server. Server data in ChatSphere/server/.

Can I use this in a modpack? Yes.

Commands

License

GNU LGPLv3 — Free to use, modify, and distribute.

Emoji by twemoji (Twitter / CC-BY 4.0).