Simulate. Learn. Master. — Interactive simulations for networking, logic, and beyond.
Choose a simulator and start building hands-on skills.
Network Simulator
Build topologies, configure devices with a real Cisco IOS CLI, and watch packets flow — all in your browser. 10 guided CCNA labs included.
LaunchDigital Circuit Design
Design and simulate combinational and sequential logic circuits. Gates, flip-flops, counters, and more.
LaunchMath & Physics Lab
Evaluate expressions, plot functions, compute derivatives, and simulate projectile motion, pendulums, and springs — a Wolfram Alpha-like experience in your browser.
LaunchIndustry-standard command-line interfaces, not toy abstractions.
ARP, OSPF, DHCP, VLANs, NAT, ACLs — packets simulated at every layer.
Step-by-step tutorials with scoring, from beginner to certification-ready.
Get help troubleshooting and learning concepts with a built-in AI tutor.
No install required. Open a simulator and start building skills in seconds.
Launch Packet Tracer