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Free GNS3 Alternatives

The best free alternative to GNS3 is Cisco Packet Tracer. If that doesn't suit you, our users have ranked six alternatives to GNS3 and four of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to GNS3 are Eve-NG, Dynamips and Free SNMP Agent Simulator.

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GNS3 iconGNS3
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  • FreeOpen Source
  • Mac
  • Windows
  • Linux

GNS3 is a graphical network simulator that allows simulation of complex networks.

Learn more about GNS3

  1. Cisco Packet Tracer icon

    Cisco Packet Tracer

    • FreeProprietary
    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad

    Packet Tracer is an essential learning tool used in these Cisco Networking Academy courses: IT Essentials, CCNA Routing and Switching, CCNA Security, Intro to Internet of Things (IoT), and Mobility Fundamentals.

    Screenshot
  2. Eve-NG icon

    Eve-NG

    • FreemiumOpen Source
    • Linux

    The new EVE-NG platform is ready for todays requirements. It allows enterprises, e-learning providers/centres, individuals and group collaborators to create virtual proof of concepts, solutions and training environments.

    Screenshot


  3. Dynamips

    • FreeOpen Source
    • Mac
    • Windows
    • Linux

    Dynamips is an emulator computer program that was written to emulate Cisco routers. It has been created by Christophe Fillot who started his work in August 2005.

    Screenshot
  4. Free SNMP Agent Simulator icon

    Free SNMP Agent Simulator

    • FreemiumProprietary
    • Windows
    • Linux

    Verax SNMP agent simulator allows IT personnel to build virtual, simulated networks of devices without purchasing any additional hardware, for instance for testing purposes.

    Screenshot
    Free SNMP Agent Simulator vs GNS3 opinions
    pros, cons and recent comments
    sdrawkcab

    Simulator for devices using exclusively the SNMP protocol, but not a true virtual network simulator such as GNS3 or Cisco Packet Tracer.

    Negative comment ago
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Showing 4 of 4 alternatives