ChatCapitalizer
by zNxki_
ChatCapitalizer capitalizes the first letter of chat messages and the first letter after sentence punctuation, while leaving player names and excluded words unchanged.
What it does
Players who read busy chat get messages where each new sentence begins with an uppercase letter. The client-side capitalization works on outgoing and incoming lines alike, and it skips player nicknames so names keep their spelling. Rules are set in the configuration file, and the mod needs Cloth Config API to open its settings screen.
Configuration covers the cases a server or player may want to change. Capitalization after punctuation can be turned off, custom symbols can be defined as triggers for the next letter, and a list of words can be excluded from changes. The settings screen opens from the Mod Menu entry when Mod Menu is installed, or from a key binding otherwise. Ordinary use of the mod needs no setup beyond installing it.
Key features
First letter capitalization
The first letter of each chat message is changed to uppercase before the message is shown.
Capitalization after punctuation
Letters that follow sentence punctuation are capitalized, which keeps longer messages readable.
Nickname protection
Player nicknames are left as typed, so names with lowercase letters are never altered.
Excluded words list
Words in the exclusion list keep their original form, which suits brand names, abbreviations and game terms.
Custom trigger symbols
Symbols other than the default punctuation can be defined as triggers for capitalizing the next letter.
Configuration screen
The settings open through Mod Menu or a key binding, with Cloth Config API providing the screen.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Optional 1
Use cases
Who it’s for: Players who want cleaner chat on Fabric servers and in single-player worlds. The mod changes only what the local client displays.
How it compares
Chat Corrector PT-BR is a Fabric client mod for 1.21.11 under the MIT License, and it corrects text rather than only capitalizing it. Spellwords is a server-side Fabric mod for 1.21.11 that is open source under the MIT License, so it is installed on the server, not by players. Name History is a client-side Fabric mod for 1.20 – 26.2 under the MIT License, and it covers a different chat feature.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| ChatCapitalizer | Fabric | 1.20.1 – 1.21.8 | Client-side only | 2025-09-21 |
| Chat Corrector PT-BR | Fabric | 1.21.11 | Client-side only | 2026-05-25 |
| Spellwords | Fabric | 1.21.11 | Server-side only | 2026-06-03 |
| Name History | Fabric | 1.20 – 26.2 | Client-side only | 2026-08-14 |
Questions
Does ChatCapitalizer need Cloth Config API?
Can the server install ChatCapitalizer?
Which game versions have files?
In the catalog
ChatCapitalizer 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 zNxki_
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What the author says
ChatCapitalizer is a lightweight client-side mod that improves chat readability in Minecraft. Every message you type is automatically formatted with a capitalized first letter, and proper capitalization after punctuation (.,?,!, etc.).
Official listing
- Modrinth page
- modrinth.com/mod/chatcapitalizer
- Owner
- zNxki_
- Published
- 2025-09-21
- Updated on Modrinth
- 2025-09-21
- Facts verified
- 2026-10-15