Own Your Security.
Pay Once. Forever.
No subscriptions. No auto-renewals. No surprise bills. Choose your plan and get enterprise-grade kernel firewall protection for life.
Basic Firewall
2-year security license for your home PC.
One-Time Payment · 02 Years
- 5-Layer Fast Protection Engine
- 200K+ Threat IP Database
- Blocks Risky Connections Early
- Standard Email Support
- AI Threat Prediction
Advance Firewall
6-year long-term license for power users.
One-Time Payment · 06 Years
- Everything in Basic
- Auto-Update Threat Feeds
- Real-time Bandwidth Monitor
- Priority Discord Support
- Extended 6-Year Coverage
Strongest Lifetime
Pay once. Protected forever. Never again.
One-Time Investment · Lifetime
- Lifetime Feature Updates
- Transferable Between PCs
- Multi-PC Console Control
- VIP Support Ticket Queue
- Insider Beta Access
Technical Depth
Uncompromising Defense Layers
Nettrix Defender isn't just a blocklist. It's a multi-stage execution environment for network traffic, operating at a level that standard software can't reach.
NDIS Interception
Operates at the Network Driver Interface Specification level. Blocks packets before Windows Firewall even sees them.
Zero-Allocation DPI
Deep Packet Inspection using non-allocating memory structures. Zero garbage collection impact on your CPU.
Process-to-Port Mapping
Live resolution of port traffic to specific .exe files using kernel-mode callbacks. Precise per-app control.
O(1) Threat Lookup
Constant time IP verification. Whether we block 100 or 1,000,000 IPs, the performance impact remains the same.
Why Nettrix?
How Nettrix Defender Stacks Up
See exactly why kernel-level protection beats legacy antivirus.
For Organizations
Need a Bulk Solution?
For teams requiring 10+ devices, custom security policies, or automated deployment scripts (MSI/GPO).
Got Questions?
Technical FAQ
These are one-time license purchases — not subscriptions. There is nothing to cancel. You own the license for the duration specified with no hidden recurring costs.
After purchase, you receive a License Key via email. Simply enter it in the "Activation" tab of the Nettrix Defender app. Activation requires a one-time internet connection.
Nettrix Defender is designed to run alongside Windows Defender and major AVs. Since we operate at the NDIS layer, we don't interfere with user-mode scanning engines.
Requires Windows 10/11 (64-bit). Nettrix Defender uses less than 32MB of RAM and 0.1% CPU idle. Compatible with all modern Intel and AMD processors.
Absolutely. If you're not satisfied with the protection or performance, contact our support within 30 days for a full, no-questions-asked refund.
Yes — Lifetime and multi-device plans support license transfers between PCs. Simply deactivate on the old machine and activate on the new one through the app settings.
Ready to Defend
Your Windows PC?
Join thousands of users who've upgraded to kernel-level protection. No subscriptions. No slowdowns. No compromises.