FatGPT focuses on making ChatGPT conversation windows too narrow to comfortably read and use. It is catalogued under Browser DevTools & extensions on PulseGate.

FatGPT is an open-source project built for chatGPT users who want a wider conversation layout.

Yes — FatGPT is open source under the Open Source license and free to use.

What platforms does FatGPT run on?

FatGPT runs on the web and embeddable surfaces.

Is FatGPT still maintained?

Unverified. FatGPT has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What projects are similar to FatGPT?

Similar projects tracked by PulseGate include WideGPT, ChatGPT Full Width, and GPT Boost.

FatGPT is developed by kstencell.

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FatGPT

Name: FatGPT
Author: kstencell

github.comInfrastructure

FatGPT is an open-source browser extension that expands the width of ChatGPT conversation windows. It is intended for ChatGPT users who prefer a wider reading and writing area in their browser.

Open SourceWebEmbeddable

Visit github.com

Overview

3 features

In the Browser DevTools & extensions space, FatGPT takes a focused approach. It focuses on making ChatGPT conversation windows too narrow to comfortably read and use. It is built as an open-source project for chatGPT users who want a wider conversation layout. The project is open source (Open Source). It runs on the web and embeddable surfaces.

Behind FatGPT is kstencell, and it first shipped in 2025. Among its 3 catalogued features are Wider ChatGPT windows, browser extension, and chatGPT layout customization.

Summary written by a language model from the project’s public pages.

Wider ChatGPT windows
Browser extension
ChatGPT layout customization

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

License

Open Source

Verified signals

HTTPSPrivacy Policy Terms of ServiceOpen SourceFree tierStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed16 Sep · 13:47 UTC
FatGPT — ChatGPT Width Control verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about FatGPT

What does FatGPT do?: FatGPT focuses on making ChatGPT conversation windows too narrow to comfortably read and use. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is FatGPT for?: FatGPT is an open-source project built for chatGPT users who want a wider conversation layout.
Is FatGPT free?: Yes — FatGPT is open source under the Open Source license and free to use.
What platforms does FatGPT run on?: FatGPT runs on the web and embeddable surfaces.
Is FatGPT still maintained?: Unverified. FatGPT has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to FatGPT?: Similar projects tracked by PulseGate include WideGPT, ChatGPT Full Width, and GPT Boost.WideGPT ChatGPT Full Width GPT Boost
Who develops FatGPT?: FatGPT is developed by kstencell.
How long has FatGPT been around?: FatGPT first shipped in 2025.

At a glance

Pricing: Open Source
Platforms: Web
Languages: English
License: Open Source
Built for: ChatGPT users who want a wider conversation layout
Model: Open source
Solves: Making ChatGPT conversation windows too narrow to comfortably read and use.

Registered as

Firefox Add-ons: fatgpt-chatgpt-width-control

Developer

kstencell

Index record

Indexed: 16 Sep 2026
Lifecycle: Alive
Last seen: 16 Sep 2026

Identity audit (13)

Slug: fatgpt-chatgpt-width-control-github-com
Lifecycle state recorded: 16 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 16 Sep 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 16 Sep 2026
Canonical URL: https://github.com/kstencell/fatgpt

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