NetSim by Tetcos vs Containerlab

NetSim by Tetcos8.9Visit Containerlab8.6Visit

Higher score NetSim by Tetcos #4 in Network Simulation Software 8.9/10 Free plan · pricing on request Free plan✓ 3 of 3 features Visit NetSim

vs

Containerlab #7 in Network Simulation Software 8.6/10 Open source ✓ 0 of 3 features Visit Containerlab

• NetSim by Tetcos fits best

  Research-grade protocol and wireless simulation

• Containerlab fits best

  Automated containerized network labs

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Side by side

Feature	NetSim by Tetcos 8.9/10 Visit ↗	Containerlab 8.6/10 Visit ↗
At a glance
Editor score	8.9	8.6
Ranking	#4 in Network Simulation Software	#7 in Network Simulation Software
Best for	Research-grade protocol and wireless simulation	Automated containerized network labs
Pricing model	Free plan + paid	Free
Starting price	Free plan · pricing on request	Open source
Free plan	✓ (best)	Not checked yet
Free trial	—	—
Deployment	Desktop, Self-hosted	Self-hosted, Desktop
Platforms	Windows	Web, Windows, macOS, Linux
Support	Email, Phone, Tickets, Docs	Community, Docs
Integrations	4 integrations	6 integrations
Built for	Small business, Mid-market, Enterprise	Solo, Small business, Mid-market, Enterprise
Features NetSim by Tetcos 3/3 · Containerlab 0/3
Real-time emulation	✓ (best)	Not checked yet
Hardware-in-the-loop	✓ (best)	Not checked yet
Automation API	✓ (best)	Not checked yet
Specs
Simulation model	Discrete-event	Not checked yet
Deployment options	Desktop	Not checked yet
Documented node limit	100 nodes	Not checked yet
Our review
Pros	Models 5G/6G, satellite, NTN, MANET, Wi-Fi, IoT, VANET, and SDN Combines real-time emulation with hardware-in-the-loop integration Supports Python, MATLAB, C source access, traces, dashboards, and batch automation	YAML topology definitions cover nodes, links, and lab settings. Supports container and virtual-machine network operating systems. Includes lifecycle controls, HTTP automation, CI workflows, and Kubernetes deployment.
Cons	Windows-based deployment limits platform flexibility Paid editions use contact-sales pricing Protocol source access applies to supported editions rather than the whole product	Self-hosted deployment places infrastructure responsibility on the team. Some network OS images may require separate vendor access or licensing. AI-assisted features are not included.
Our verdict	NetSim by Tetcos is a Windows-based packet-level, discrete-event network simulator and emulator for research, teaching, commercial industry, and defence work. It is suited to teams studying wired and wireless communication networks,… Read the review →	Containerlab is a self-hosted command-line tool for building, deploying, wiring, and managing container-based network labs. It is designed for network engineers, developers, educators, and infrastructure teams that need repeatable… Read the review →

Strengths and trade-offs

• NetSim by Tetcos — where it wins

  • Models 5G/6G, satellite, NTN, MANET, Wi-Fi, IoT, VANET, and SDN
  • Combines real-time emulation with hardware-in-the-loop integration
  • Supports Python, MATLAB, C source access, traces, dashboards, and batch automation

  Where it doesn't

  • Windows-based deployment limits platform flexibility
  • Paid editions use contact-sales pricing
  • Protocol source access applies to supported editions rather than the whole product

• Containerlab — where it wins

  • YAML topology definitions cover nodes, links, and lab settings.
  • Supports container and virtual-machine network operating systems.
  • Includes lifecycle controls, HTTP automation, CI workflows, and Kubernetes deployment.

  Where it doesn't

  • Self-hosted deployment places infrastructure responsibility on the team.
  • Some network OS images may require separate vendor access or licensing.
  • AI-assisted features are not included.

• NetSim by Tetcos8.9/10 · Free plan · pricing on request

  A research-focused simulator for detailed wired, wireless, and emulated network studies.

  Visit NetSimFull verdict →
• Containerlab8.6/10 · Open source

  A capable open-source choice for automated, multivendor network lab orchestration.

  Visit ContainerlabFull verdict →