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Head-to-head · Network Simulation Software

ns-3 vs Containerlab

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score ns-3 #6 in Network Simulation Software 8.7/10 Free plan Free plan✓ 2 of 3 features Visit ns-3
Containerlab #7 in Network Simulation Software 8.6/10 Open source ✓ 0 of 3 features Visit Containerlab

ns-3 leads on 0 checks, Containerlab on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scorens-3 · 8.7/10
  • Free planonly ns-3
  • Most featuresns-3 · 2 of 3

ns-3 scores higher on our rubric for network simulation software: 8.7 against 8.6 out of 10; our editors rank them #6 and #7.

ns-3 is the better fit for open-source discrete-event research. Containerlab is the better fit for automated containerized network labs.

  • ns-3 fits best

    Open-source discrete-event research

  • Containerlab fits best

    Automated containerized network labs

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature ns-3 8.7/10 Visit ↗ Containerlab 8.6/10 Visit ↗
At a glance
Editor score 8.7 8.6
Ranking #6 in Network Simulation Software #7 in Network Simulation Software
Best for Open-source discrete-event research Automated containerized network labs
Pricing model Free Free
Starting price Free plan Open source
Free plan ✓ (best) Not checked yet
Free trial — —
Deployment Desktop Self-hosted, Desktop
Platforms Windows, macOS, Linux Web, Windows, macOS, Linux
Support Community, Docs Community, Docs
Integrations 4 integrations 6 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features ns-3 2/3 · Containerlab 0/3
Real-time emulation ✓ (best) Not checked yet
Hardware-in-the-loop Not checked yet 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 Not checked yet Not checked yet
Our review
Pros
  • Free and open source for research and education
  • Broad wireless, IP, routing, mobility, and device models
  • Real-time, tracing, visualization, and MPI support
  • 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
  • Desktop deployment without a web interface
  • Scenario development uses C++ or Python programs
  • Integrations are limited to a focused set of tools
  • 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

ns-3 is a free, open-source discrete-event network simulator for Internet systems. It is aimed primarily at networking research and education, supporting models for IP and non-IP networks, wireless technologies, routing, applications,…

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 →
  1. ns-3Network Simulation Software 8.7Free plan
  2. ContainerlabNetwork Simulation Software 8.6Open source

Strengths and trade-offs

  • ns-3 — where it wins

    • Free and open source for research and education
    • Broad wireless, IP, routing, mobility, and device models
    • Real-time, tracing, visualization, and MPI support

    Where it doesn't

    • Desktop deployment without a web interface
    • Scenario development uses C++ or Python programs
    • Integrations are limited to a focused set of tools

  • 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.

More comparisons

All network simulation software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update