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AdvancedChatBox Modernized

by x_jeggu

AdvancedChatBox Modernized brings chat suggestions, a spelling checker and in-chat tools to the Minecraft chat box, built as a fork of AdvancedChatBox for 1.21.8 and newer.

FabricQuiltClient-side onlyMozilla Public License 2.0Open source1.21.8 – 1.21.10

What it does

The mod extends the chat box with complex tab completion, color suggestors and custom command highlighting, so typed commands and their arguments are easier to read before sending. Players can turn player tab suggestions on or off, and the legacy color code formatting works while typing messages.

The spelling checker is powered by LanguageTool, and the built-in JSON linter commands check JSON text typed in chat. An in-chat calculator answers arithmetic without leaving the game. The mod requires AdvancedChatCore Modernized, which must be installed alongside it on Fabric or Quilt. Files cover 1.21.8, 1.21.9 and 1.21.10, with 1.21.10-1.1.8 as the latest build, published on 2025-10-13.

Key features

  1. Complex tab completion

    Tab completion in the chat box handles more complex suggestions than the vanilla list.

  2. Spelling checker

    Typed messages are checked for spelling with LanguageTool, and the language proofreading is built in.

  3. In-chat calculator

    A calculator runs inside the chat box, so players can evaluate expressions without opening another window.

  4. Command highlighting and JSON linter

    Custom command highlighting marks commands as they are typed, and built-in linter commands check JSON.

Compatibility

Latest build for each game version and loader.

1.21.101.21.10-1.1.81.21.10-1.1.8
1.21.91.21.9-1.1.71.21.9-1.1.7
1.21.81.21.8-1.1.6Not available
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 1

AdvancedChatCore ModernizedFork of AdvancedChatCore to work in 1.21.8+
Required

Questions

Does AdvancedChatBox Modernized need another mod?

Yes. It requires AdvancedChatCore Modernized, which must be installed with it on Fabric or Quilt.

Which game versions does the mod support?

Files exist for 1.21.8, 1.21.9 and 1.21.10. The latest build, 1.21.10-1.1.8, was published on 2025-10-13.

Does the mod need to be installed on a server?

No. The mod is client-side only, so only the player's client needs it, and servers run without it.

More from x_jeggu

All projects
AdvancedChatCore Modernized1.21.8 – 1.21.10AdvancedChatHUD Modernized1.21.8 – 1.21.10AdvancedChatFilters Modernized1.21.8 – 1.21.10AdvancedChatLog Modernized1.21.8 – 1.21.10

What the author says

!!!This is a continued version of AdvancedChatBox by DarkKronicle!!! AdvancedChatBox allows for complex suggestions and tab completion to be added into the Minecraft chat box.
x_jeggu, on the Modrinth page

Official listing

Owner
x_jeggu
Published
2025-09-23
Updated on Modrinth
2025-10-13
Facts verified
2026-10-15
Open on ModrinthCompare