Security, Privacy & Compliance
Nullgen AI Blocker
Block AI on every device, from the prompt box to the app
Browser extension and mobile/desktop apps that block AI prompts in browsers and known AI apps on phones and computers.
Overview
The Nullgen AI Blocker homepage
Nullgen AI Blocker is a suite of tools for blocking AI access across devices. The browser extension stops AI prompts before they are sent, working on Chrome, Edge, Firefox, and Safari with on-device processing. The mobile app for iOS and Android blocks known AI apps and websites from loading on phones and tablets. A desktop agent for macOS and Windows is coming soon to block AI apps across the whole computer.
The free extension requires no account and no sign-up, blocking all AI prompts on any website while keeping the rest of the page usable. Pro adds centralized management, user and device enrollment, access request approvals, policy syncing, and enforcement features. The suite is designed for parents managing homework integrity, educators enforcing academic integrity on school devices, and IT teams preventing data leakage to public language models.
Capabilities
- Blocks AI prompts in browser
- Blocks 100+ known AI apps and websites
- On-device processing with no data collection
- Works across Chrome, Edge, Firefox, and Safari
- Mobile app for iOS and Android
- Centralized admin dashboard
- Access request approvals
- Real-time policy synchronization
- Force-install and pinning enforcement
- Zero-touch deployment via Intune, Jamf, Google Workspace, and Group Policy
Pricing
Pricing model: Freemium
Free extension forever with no account required. Family plan: 14 day trial, then $5.99/month for up to 4 children and 2 parents with dashboard and mobile apps. Enterprise plan: 30 day trial, then $10/seat/month for organizations.
Follow Nullgen AI Blocker to get an email when they post a milestone, ship a new product or add a demo video.
Nullgen AI Blocker fact sheet
| Community votes | 0 |
|---|---|
| Website | nullgen.ai |
Nullgen AI Blocker metrics
Vendor metrics for nullgen.ai: Ahrefs Domain Rating and Majestic link data, with the delta since the last review.
- Domain Rating
- 0
- no change since last check
- Trust Flow
- 1
- no change since last check
- Citation Flow
- 25
- no change since last check
- Referring domains
- 30
- no change since last check
- External backlinks
- 41
- no change since last check
Vendor Domain Rating (Ahrefs) checked 6 Nov 2026, spec changed 21 Oct 2026. Vendor topic: Business (1). Vendor Majestic data checked 21 Oct 2026, spec changed 21 Oct 2026. Link metrics supplied by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
Nullgen AI Blocker vendor domain
Open the vendor record
We read this from the registry's RDAP record on 5 Nov 2026, 21:00 UTC.
- Domain age
- 3 months
- Registered
- Expires
- Registrar
- Squarespace Domains LLC
- DNSSEC
- Not signed
Nullgen AI Blocker post-launch report
| Measure | At launch, then latest |
|---|---|
| Domain Rating (Ahrefs) | 0 to 0 no change since launch 21 Oct 2026, then 5 Nov 2026 |
| Trust Flow (Majestic) | 1 first measured 21 Oct 2026 |
| Referring domains (Majestic) | 30 first measured 21 Oct 2026 |
Day 16 since launch. Next receipt: day 30, 20 Nov 2026. Many things move these figures, so a change is not proof of cause. Only stored readings are shown.
About to launch?
Plan your launch with our free playbook, from preparing your listing to choosing more launch directories.
- The week before
- On the day
- Week one
- Beyond launch
Buyer questions
Is the free version limited or a trial?
The free extension is the permanent free product. Prompt blocking in the browser stays free. Pro adds the admin portal, fleet management, and the mobile and desktop apps.
Do you see what people type?
No. Detection runs in the browser and prompt text is not sent to Nullgen. The apps block on the device and never send browsing data. The free extension has no account, so nothing is tied to you.
Does it only block ChatGPT?
No. The extension finds AI prompt boxes on any website, including new assistants, and leaves the rest of the page usable. The apps block a growing list of known AI apps and sites.
Does it work on phones and tablets?
Yes. The Nullgen app for iPhone, iPad, and Android blocks known AI apps and websites on the device and links to the same Pro dashboard as the extension.
Can it be uninstalled by the person using the device?
Yes, the browser extension, mobile app, and desktop app can all be uninstalled. Nullgen Pro adds enforcement to pin the extension and apps, alongside OS-level family and enterprise controls.
Leave a review for Nullgen AI Blocker
No customer reviews of Nullgen AI Blocker yet. Write the first. Customer reviews are free and nobody can buy them.
Nullgen AI Blocker has a free listing. The owner can unlock the full profile with a paid launch for $5:
- Founder story (locked)
- Milestones (locked)
- Demo video (locked)
- Dofollow website link (locked)
Compare with
| # | Product | DR | Votes |
|---|---|---|---|
| 1 |  roo |
0 no change since last check | 0 votes. Log in to vote for rooGBotVC as a buyer |
| 2 |  Heim |
5 +3 (up) since last check | 0 votes. Log in to vote for HeimWall as a buyer |
| 3 |  GhostforkZero-trust Git hosting where code is encrypted on your machine before it leaves |
0 no change since last check | 0 votes. Log in to vote for Ghostfork as a buyer |
| 4 |  PreflightSecurity scan for Supabase apps built with AI tools |
0 no change since last check | 0 votes. Log in to vote for Preflight as a buyer |