Browser-Based. Zero Install. Full Precision.

Network Architecture,
Engineered with
Precision.

The high-fidelity professional environment for modeling, simulating, and validating network topologies with deterministic accuracy.

NetPacket Simulator — Design Mode
CORE-R01
ACC-SW04
HOST-01

Drag & drop topology builder with real-time simulation

Full protocol stack — production-grade simulation

ARPICMPDHCPDNSOSPFNATACLVLANSTPStatic RoutingMAC LearningEthernet L2
12,000+
Labs Created
98.7%
Validation Accuracy
12
Protocols Simulated
50+
Universities & Teams

NetPacket replaced our entire Packet Tracer workflow. The browser-based simulation is incredibly accurate and the validation catches issues we'd miss manually.

DSC
Dr. Sarah Chen
Network Engineering Professor, MIT CSAIL

We use NetPacket to prototype every new network topology before deployment. The deterministic engine means what we simulate is exactly what we get in production.

MR
Marcus Rodriguez
Senior Network Architect, Cloudflare

The 5 work modes changed how our team collaborates. Design, simulate, validate — all in one tool. Our time-to-deployment dropped by 40%.

AP
Aisha Patel
Infrastructure Lead, Stripe

Deterministic Simulation Engine

Run real packet flows across L2/L3 architectures. The engine traces every frame with accurate timing — ARP, ICMP, DHCP, DNS, OSPF, STP, NAT, ACL all simulated in your browser with zero server dependency.

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Automated Validation

9 built-in rules catch duplicate IPs, subnet overlaps, missing routes, gateway inconsistencies, VLAN mismatches and ACL conflicts automatically.

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Real-time Analytics

Inspect ARP tables, routing tables, MAC tables, OSPF neighbors, STP states, NAT translations and ACL counters in real-time during simulation.

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5 Integrated Work Modes

Design, Simulate, Validate, Troubleshoot, Document — switch seamlessly between modes with dedicated layouts optimized for each workflow. Each mode provides specialized tools and panels for its specific task.

DesignSimulateValidateTroubleshootDocument

Scale Without Friction.

Engineered for performance, scaled for impact.

Base
Free
$0/month
  • 3 Labs
  • 50 Sim Runs / Day
  • Basic Templates
Most Popular
Advanced
Pro
$25/month
  • 25 Labs
  • 500 Sim Runs / Day
  • All Templates
  • Lab Export
Collaboration
Team
$99/month
  • 100 Labs
  • Up to 10 Members
  • Real-time Collaboration
Scale
Enterprise
Custom
  • Unlimited Everything
  • SSO / SAML
  • Dedicated Support

Ready to architect the
next topology?

Start free with 3 labs and 50 simulation runs per day. No credit card required.