FatGPT — ChatGPT Width Control by Karl Stencell

Adjust ChatGPT’s chat width with simple controls. No tracking, no accounts, just a wider view.

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About this extension

Tired of ChatGPT’s cramped layout? FatGPT lets you widen or narrow the chat column with a slider or quick keyboard shortcuts. No clutter, no gimmicks — just control over how much space your chat takes.

What it does:

Resize ChatGPT’s conversation column instantly
Use Alt + . and Alt + , to adjust width. Alt + M to maximize, Alt + 0 to reset.
Remembers your preferred layout automatically
Works on chat.openai.com and chatgpt.com

What it doesn’t do:

Doesn’t collect, track, or share any data
Doesn’t need an account or email
Doesn’t access the internet or external servers
No paywalls or locked features — everything is free

All settings are stored locally in your browser. It’s a small, single-purpose extension that just makes ChatGPT feel right on your screen.

Developer comments

This addon has no network connectivity and does not require any user information. It uses local browser storage to remember width settings and that's it.

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