ChatGPT Ad Blocker - Remove Upsells, Promos & Partner Ads

MANIFEST V3 READY 100% PRIVATE • ZERO TELEMETRY CHROME • BRAVE • EDGE • ARC

Clean, Ad-Free ChatGPT in One Click

Block ChatGPT Plus/Pro upgrade banners, intrusive partner recommendation cards (Canva, Monday, Zillow), and sponsored badges. Download the ready-to-use extension ZIP, test live in our interactive sandbox, or customize detection rules below.

Download Extension (.ZIP)

Live Sandbox Rule Builder

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Interactive ChatGPT Ad Blocker Simulator

Test the live blocking algorithm against real simulated ChatGPT promo cards, partner widgets, and upsell banners.

Status Active (Blocking)

Active Filters: Upgrade Promos Partner App Cards Sponsored Ads Sidebar Upsell

chatgpt.com

ChatGPT 4o

Recent Chats

🚀 Project Architecture Review

📊 Astro SEO Strategy

⚡ Manifest V3 Service Worker

You

Can you help me design a quarterly marketing campaign dashboard and project schedule?

⭐

Unlock GPT-5 Advanced Reasoning

Upgrade your plan for unlimited deep analysis & custom agents.

ChatGPT

Here is a structured framework for your quarterly marketing campaign:

1. Phase 1 (Weeks 1-3): Research, Audience Segmentation & Creative Assets

2. Phase 2 (Weeks 4-8): Multi-channel Launch, A/B Testing & Paid Acquisition

3. Phase 3 (Weeks 9-12): Retargeting, Optimization & ROI Synthesis

Canva

Partner App

Turn this campaign schedule into polished visual presentations and social banners in Canva.

Monday.com

Ad • Sponsored

Automate workflows and track your marketing sprints with Monday Work OS templates.

🛡️ Extension Popup

Total Blocked on Page

Zero layout shift • Inpainted smoothly

BLOCKED ADS & PROMOS 4 detected

Install to Block on ChatGPT

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Custom Rule Generator & Extension Packager

Customize which phrases, partner brands, and CSS selectors to filter. Export a customized ZIP package instantly!

1. Blocked Promo Text Phrases (comma-separated) Scanned via TreeWalker

Matches any leaf or card containing these strings and climbs to the outer wrapper container.

2. Partner App Brands & Connectors (comma-separated) Apps in ChatGPT

3. Declarative CSS Filter Rules (Instant Zero-Flash)

Block [data-testid*="upgrade" | "promo" | "upsell"] Block [data-testid*="app-card" | "connector-card"] Block [aria-label="Advertisement" | "Sponsored"] Block a[href*="/pricing"] > div

Generated blocker.js Preview

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Extension Source Code & File Inspector

Review the 100% open source Manifest V3 implementation files. Zero external calls, zero dependencies.

manifest.json (Manifest V3 configuration) 694 bytes

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How to Install in 60 Seconds (Chrome, Brave, Edge & Arc)

No Chrome Web Store account or payment required. Load the unpacked extension directly into your browser.

Download & Unzip

Download the chatgpt-adblock.zip archive and extract the folder to a permanent location on your computer.

Folder: chatgpt-adblock/

Open Extensions Page

Type chrome://extensions in your URL bar (or brave://extensions, edge://extensions).

Address bar navigation

Toggle Developer Mode

In the top-right corner of the Extensions management page, turn on the Developer mode switch.

Top-right toggle switch

Load Unpacked

Click Load unpacked in the top-left, select the extracted chatgpt-adblock folder, and visit chatgpt.com!

Active immediately

Why Traditional Ad Blockers Fail on ChatGPT (and How React SPA DOM Dynamics Work)

The ChatGPT web client is a single-page application built on React that uses dynamically scoped CSS utility class names and client-side hydration. Unlike traditional publisher websites where advertisements are loaded from third-party advertising exchanges (such as Google AdSense or Taboola), ChatGPT embeds promotional upgrade banners and "Apps in ChatGPT" partner cards directly into the internal message stream and interface components.

Because these elements originate from the same first-party domain (chatgpt.com) without third-party network requests, standard URL-filtering ad blockers (such as DNS-level blockers or naive domain filters) cannot differentiate between a legitimate AI assistant reply and an intrusive sponsored partner card. Furthermore, ChatGPT regularly re-renders the conversation tree as new tokens stream in, causing static CSS element-hiding rules to become stale or break.

The Dual-Engine Architecture: Declarative CSS Injection + TreeWalker MutationObserver

The ChatGPT Ad Blocker utilizes an efficient dual-engine architecture designed specifically for modern dynamic JavaScript web applications:

1. Instant Declarative CSS Engine (`hide.css`)

Injected at run_at: "document_start", declarative CSS selectors immediately target known container attributes (e.g. [data-testid*="upgrade"], [data-testid*="app-card"], [aria-label="Advertisement"]). This prevents layout shifts and guarantees zero visual flickering while the page initially loads.

2. Reactive TreeWalker DOM Engine (`blocker.js`)

A high-performance MutationObserver observes newly added message stream elements. When new nodes appear, a lightweight TreeWalker tests leaf nodes against registered promo phrases and brand names. Using bounded ancestor climbing (climbToCard), it cleanly hides the nearest card wrapper without altering surrounding chat messages.

ChatGPT Ad Blocker vs Generic Ad Blockers vs UserScripts

Comparing dedicated React DOM blocking extensions against generic tools illustrates the trade-offs in performance, layout stability, and maintenance:

Feature / Metric	ChatGPT Ad Blocker (Nadhebe)	Generic uBlock Origin Filter	Tampermonkey UserScript
Zero Layout Flash (document_start)	Yes (Declarative CSS)	Partial (Cosmetic filtering delay)	No (Runs after DOM loaded)
Dynamic React Re-render Resilient	Yes (MutationObserver + TreeWalker)	No (Class names change often)	Depends on script implementation
Partner App Card Extraction	Yes (Canva, Monday, Zillow, etc.)	Difficult without breaking UI	Manual XPath queries
Live Badge Counter & Popup	Yes (Real-time category breakdown)	Aggregated domain count only	None
CPU & Memory Overhead	< 2ms per mutation burst	< 1ms	Varies (10-50ms)
Telemetry & Privacy	100% Client-Side • Zero Network Calls	Zero Network Calls	Depends on author

Supported ChatGPT Promo Types & Brands Blocked

The default ruleset actively monitors and suppresses four major categories of promotional elements across chatgpt.com and chat.openai.com:

Subscription & Plan Upsells: "Upgrade to Plus", "Upgrade to Go", "Upgrade to Pro", "Get Plus", "Try Plus", "Unlock GPT", "Upgrade your plan", and "Limited time" banners.
Feature Discovery Banners: "Try advanced voice", "Explore Custom GPTs", and multimodal preview modals.
Partner App Recommendations: Embedded suggestion cards for Monday.com, Canva, Zillow, DoorDash, Coursera, Spotify, Booking.com, Expedia, Peloton, Wolfram, Instacart, Figma, and Notion.
Sponsored / Native Ads: Direct elements carrying [aria-label="Advertisement"], [aria-label="Sponsored"], or [data-testid*="banner-ad"] metadata.

Security, Permissions & Zero-Telemetry Audit

In accordance with modern web security best practices, the ChatGPT Ad Blocker Manifest V3 extension requires only two permissions:

storage: Used strictly to save your local toggle preferences (enabled/disabled state) and locally stored blocked item counts in chrome.storage.local.
host_permissions: ["https://chatgpt.com/*", "https://chat.openai.com/*"]: Used to execute the content script and inject hide.css solely on OpenAI ChatGPT domains.

The extension makes zero external fetch requests, connects to no third-party APIs, and contains no analytics trackers. All code is completely inspectable directly in your browser.

Extension Support & Official Release Info

This page serves as the official homepage and support hub for the ChatGPT Ad & Promo Blocker Chrome extension (Manifest V3, Version 1.0).

Latest Release

v1.0 (Manifest V3)

Developer Support

Nadhebe Developer Support

Privacy Guarantee

Zero Logs & 100% Local

Frequently Asked Questions

Common questions about this tool.

How does the ChatGPT Ad Blocker work without breaking the chat interface? ▼

The ChatGPT Ad Blocker uses a dual-engine approach: (1) declarative CSS injected at document_start to instantly hide known data-testid and aria-label ad containers with zero layout flash, and (2) a MutationObserver combined with a lightweight TreeWalker in JavaScript that scans new dynamic React DOM nodes for promo phrases and partner brand cards, climbing only to the nearest card container without affecting chat message threads.

Is the ChatGPT Ad Blocker extension safe and private? ▼

Yes, 100%. The extension is open source, operates entirely locally in your browser memory, requests only minimal required permissions (storage and chatgpt.com host permissions), and executes zero telemetry, external network requests, or analytics calls.

Why do standard ad blockers like uBlock Origin miss some ChatGPT promo cards? ▼

ChatGPT is a dynamic Single Page Application (SPA) built with React and Tailwind-like compiled utility classes that change across deployments. Native partner integrations (such as Canva or Monday.com cards) and inline upgrade prompts are rendered dynamically inside the message stream rather than fetched from traditional advertising third-party domains, making domain-based network filters ineffective.

Can I install this extension on Brave, Microsoft Edge, Arc, and Opera? ▼

Yes. Because all these browsers are built on the Chromium engine and support Manifest V3, you can load the unpacked extension in developer mode on Google Chrome, Brave, Microsoft Edge, Arc Browser, Opera, and Vivaldi.

Can I add my own custom keywords or brand cards to block? ▼

Yes. Use the interactive Custom Rule Generator on this page to add your own promo keywords, select partner brands, and export a custom-built ZIP package or copy updated blocker.js scripts directly.