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Best Common Open Research Emulator (CORE) Alternatives in 2026

Updated

20 platforms from network simulation software ranked against Common Open Research Emulator (CORE) on the same published basis.

  1. 1
    Mininet Free plan apiLinuxMacself-hostedWin Free7.4
    Common Open Research Emulator (CORE) vs Mininet
  2. 2
    Kathará Free plan apiLinuxMacself-hostedWin Free7.3
    Common Open Research Emulator (CORE) vs Kathará
  3. 3
    Containerlab Free plan apiLinuxMacself-hostedWeb Free7.2
    Common Open Research Emulator (CORE) vs Containerlab
  4. 4
    OMNEST Free trial apiLinuxMacself-hostedWin 6.9
    Common Open Research Emulator (CORE) vs OMNEST
  5. 5
    EVE-NG Free plan LinuxMacself-hostedWebWin Free6.0
    Common Open Research Emulator (CORE) vs EVE-NG
  6. 6
    IMUNES Free plan LinuxMacself-hostedWebWin Free6.0
    Common Open Research Emulator (CORE) vs IMUNES
  7. 7
    NetSim by Tetcos Free plan Win Free6.0
    Common Open Research Emulator (CORE) vs NetSim by Tetcos
  8. 8
    OMNeT++ Free plan LinuxMacself-hostedWin Free6.0
    Common Open Research Emulator (CORE) vs OMNeT++
  9. 9
    Cisco Packet Tracer Free plan LinuxMacWin Free5.9
    Common Open Research Emulator (CORE) vs Cisco Packet Tracer
  10. 10
    Cloonix Free plan LinuxWeb Free5.9
    Common Open Research Emulator (CORE) vs Cloonix
  11. 11
    EMANE Free plan Linuxself-hosted Free5.9
    Common Open Research Emulator (CORE) vs EMANE
  12. 12
    GNS3 Free plan LinuxMacself-hostedWebWin Free5.9
    Common Open Research Emulator (CORE) vs GNS3
  13. 13
    Marionnet Free plan LinuxMacWin Free5.9
    Common Open Research Emulator (CORE) vs Marionnet
  14. 14
    Mininet-WiFi Free plan Linuxself-hosted Free5.9
    Common Open Research Emulator (CORE) vs Mininet-WiFi
  15. 15
    ns-3 Free plan LinuxMacself-hostedWin Free5.9
    Common Open Research Emulator (CORE) vs ns-3
  16. 16
    PNETLab Free plan LinuxMacself-hostedWebWin Free5.9
    Common Open Research Emulator (CORE) vs PNETLab
  17. 17
    QuNetSim Free plan LinuxMacself-hostedWin Free5.9
    Common Open Research Emulator (CORE) vs QuNetSim
  18. 18
    Cisco Modeling Labs Free plan LinuxMacWebWin Free5.8
    Common Open Research Emulator (CORE) vs Cisco Modeling Labs
  19. 19
    Days Linux 5.4
    Common Open Research Emulator (CORE) vs Days
  20. 20
    EXata Network Modeling LinuxWin 5.3
    Common Open Research Emulator (CORE) vs EXata Network Modeling

Common Open Research Emulator (CORE) alternatives compared

#PlatformScoreFree planFromRuns on
1Mininet7.4Free planFreeAPI, Linux, Mac, self-hosted, Windows
2Kathará7.3Free planFreeAPI, Linux, Mac, self-hosted, Windows
3Containerlab7.2Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
4OMNEST6.9No—API, Linux, Mac, self-hosted, Windows
5EVE-NG6.0Free planFreeLinux, Mac, self-hosted, Web, Windows
6IMUNES6.0Free planFreeLinux, Mac, self-hosted, Web, Windows
7NetSim by Tetcos6.0Free planFreeWindows
8OMNeT++6.0Free planFreeLinux, Mac, self-hosted, Windows
9Cisco Packet Tracer5.9Free planFreeLinux, Mac, Windows
10Cloonix5.9Free planFreeLinux, Web
11EMANE5.9Free planFreeLinux, self-hosted
12GNS35.9Free planFreeLinux, Mac, self-hosted, Web, Windows
13Marionnet5.9Free planFreeLinux, Mac, Windows
14Mininet-WiFi5.9Free planFreeLinux, self-hosted
15ns-35.9Free planFreeLinux, Mac, self-hosted, Windows
16PNETLab5.9Free planFreeLinux, Mac, self-hosted, Web, Windows
17QuNetSim5.9Free planFreeLinux, Mac, self-hosted, Windows
18Cisco Modeling Labs5.8Free planFreeLinux, Mac, Web, Windows
19Days5.4No—Linux
20EXata Network Modeling5.3No—Linux, Windows
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Questions about Common Open Research Emulator (CORE) alternatives

What is the best alternative to Common Open Research Emulator (CORE)?

Mininet, number 1 in network simulation software with a score of 7.4 out of 10. The others here: Kathará, Containerlab, OMNEST and 16 more.

What is the best free alternative to Common Open Research Emulator (CORE)?

Mininet is the best-ranked alternative with a free plan. 17 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.