NoAdsGPT — Ad-Free ChatGPT Extension

A minimal, privacy-focused browser extension that removes sponsored ads and promotional content from ChatGPT's interface.

What It Does

NoAdsGPT removes the "Sponsored" tinted-box ad cards that appear below ChatGPT responses for Free and Go tier users. It also blocks ad tracking requests to OpenAI's bazaar endpoint.

How ChatGPT Ads Work

Since February 2026, OpenAI shows sponsored content to Free and Go plan users in the US (expanding globally). Ads appear as:

• Tinted box cards below responses, labeled "Sponsored"
• Contains advertiser name, favicon, headline, description, and images
• Assets served from bzrcdn.openai.com
• Tracking via /bazaar/event endpoint

NoAdsGPT blocks all of these.

Features

• CSS + DOM Blocking — Hides ad containers via CSS selectors and DOM observation
• Ad Tracking Blocked — Intercepts bazaar tracking requests
• Lightning Fast — CSS loads at document_start, before ads render
• Privacy First — No data collection, no analytics, no external requests
• One-Click Install — No configuration needed
• Minimal Permissions — Only activeTab + storage + host permissions
• Auto-Updates — MutationObserver catches dynamically loaded ads

Install

Browser	Link
Chrome	Chrome Web Store
Firefox	Firefox Add-ons

How It Works

1. blocker.css — Injected at document_start, hides known ad selectors before they render
2. content.js — Observes DOM for dynamically added ad elements and hides them
3. Tracking block — Intercepts fetch() and XHR calls to /bazaar/event

Targeted Selectors

• [data-testid*="sponsored"] — Sponsored content attributes
• [class*="sponsored"] — Sponsored class patterns
• img[src*="bzrcdn.openai.com"] — Ad asset images
• a[href*="utm_medium=cpc"] — Ad click-through links
• Elements containing "Sponsored" text with CPC links nearby

File Structure

noadsgpt/
├── manifest.json      # Extension manifest (V3)
├── content.js         # DOM observer + ad blocking logic
├── blocker.css        # CSS rules to hide ad elements
├── popup.html         # Extension popup UI
├── popup.js           # Popup logic (toggle, stats)
├── popup.css          # Popup styles
├── icons/             # Extension icons
├── LICENSE            # MIT License
└── README.md          # This file

Verify It Yourself

1. Inspect manifest.json — Only activeTab + storage permissions
2. Monitor Network Tab — No outbound requests from the extension
3. Review Source Code — Small enough to audit in minutes
4. No Remote Code — No eval(), no external fetch(), no dynamic script loading

Privacy

• No data collection
• No analytics
• No chat logging
• No external requests
• No account needed
• Everything runs locally

Note for Asia Region Users

ChatGPT ads are currently rolling out in the US first, with expansion to Canada, Australia, and New Zealand. If you're in Asia, you may not see ads yet — but this extension is ready for when they arrive in your region.

Contributing

Contributions are welcome! Feel free to open issues or submit pull requests.

1. Fork the repository
2. Create your feature branch (git checkout -b feature/improvement)
3. Commit your changes (git commit -m 'Add improvement')
4. Push to the branch (git push origin feature/improvement)
5. Open a Pull Request

Especially welcome:

• New ad selectors as ChatGPT's ad format evolves
• Firefox compatibility fixes
• Localization

License

MIT License — see LICENSE for details.

Links

• Website
• Blog
• Privacy Policy

---

NoAdsGPT is an independent third-party browser extension. Not affiliated with OpenAI or ChatGPT.