advancedchatbox-next
by Arematics
Advancedchatbox-next is a continued version of DarkKronicle's AdvancedChatBox, with a spelling checker, an in-chat calculator and chat formatting tools for Fabric and Quilt.
What it does
The mod continues the work of DarkKronicle's AdvancedChatBox and keeps its chat tools working on Minecraft 1.21 and 1.21.8. A spelling checker built on LanguageTool marks mistakes as a player types, and a language proofreading option covers longer messages. An in-chat calculator evaluates expressions typed into the chat box, so players can solve a sum without leaving the game.
Chat suggestions can be tuned: player tab suggestions can be switched off, and the colors of suggestion entries can be changed. Custom command highlighting and built-in JSON linter commands help when writing commands or data text. Legacy color codes can be typed as formatting in chat messages. The mod is open source under the Mozilla Public License 2.0 and runs on the client alone, so servers need nothing installed.
Files are published for Fabric and Quilt, with v1.1.8 as the latest build for 1.21.8, dated 2025-09-28. Builds cover 1.21 and 1.21.8 only.
Key features
Spelling checker
Typed words are checked against a dictionary powered by LanguageTool, with mistakes flagged in the chat box.
In-chat calculator
Math expressions typed into the chat box are evaluated and the result is shown without a separate tool.
Suggestion controls
Player tab suggestions can be turned off, and the colors used by suggestion entries can be changed.
Command highlighting and JSON linting
Custom commands are highlighted as they are typed, and built-in commands check JSON text for errors.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Writing commands and data
Players and map makers who type long commands or JSON text get highlighting and linting in the chat box.
Chatting with fewer typos
Players who want cleaner messages can rely on the spelling checker and proofreading while typing in multiplayer chat.
Who it’s for: Players who use the chat box often, map makers who write commands, and anyone who wants the AdvancedChatBox features on a current Minecraft version.
How it compares
AdvancedChatBox Modernized is a Fabric and Quilt mod for 1.21.8 – 1.21.10, client-side only and open source under the Mozilla Public License 2.0. ChatDebug is a Fabric mod for 1.21.5 only, client-side only, released under the MIT License and open source. OGLinter is a Fabric mod for 1.21.7 – 1.21.8, client-side only, released under All rights reserved and not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| advancedchatbox-next | Fabric and Quilt | 1.21 – 1.21.8 | Client-side only | 2025-09-28 |
| AdvancedChatBox Modernized | Fabric and Quilt | 1.21.8 – 1.21.10 | Client-side only | 2025-10-13 |
| ChatDebug | Fabric | 1.21.5 | Client-side only | 2025-04-21 |
| OGLinter | Fabric | 1.21.7 – 1.21.8 | Client-side only | 2026-03-08 |
Questions
Does advancedchatbox-next need Fabric API?
Does the server need the mod?
Which game versions does it support?
In the catalog
advancedchatbox-next is one of 5,392 Social mods on ModsFinder, and one of 4,084 Social mods for Fabric. 17,695 mods support Minecraft 1.21.8.
More from Arematics
Similar mods
What the author says
Please submit bugs to the issue tracker.
Official listing
- Modrinth page
- modrinth.com/mod/advancedchatbox-next
- Owner
- Arematics
- Published
- 2024-09-17
- Updated on Modrinth
- 2025-09-28
- Facts verified
- 2026-10-15