Marionnet review
A clear, free way to emulate Linux networks visually, with limited advanced automation.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Marionnet is a free, open-source virtual network laboratory for defining, configuring, and running Ethernet networks without physical equipment. It is primarily aimed at teaching computer networks in university laboratories, with documented uses in high schools, testing, and development. The software provides a graphical network editor for virtual computers, routers, hubs, switches, and cables, while User Mode Linux supplies GNU/Linux virtual-machine emulation. Its listed desktop platforms are Linux, Windows, and macOS, although the product itself centers on Linux-based network environments.
The strongest fit is visual network learning and straightforward emulation. Marionnet's graphical diagram updates dynamically as the network changes, and dynamic reconfiguration lets users modify virtual environments during work. Host-network connectivity is available through gateway devices, while VLAN configuration can be handled through VDE switch terminals. Copy-on-write filesystems support virtual-machine management, and host X-server support allows graphical applications to run. Integrations with VirtualBox, User Mode Linux, Virtual Distributed Ethernet, and Graphviz extend its surrounding toolset without changing its desktop deployment model.
Marionnet is most suitable when the priority is a free, graphical laboratory for experimenting with Linux machines and common network components. It is less suited to teams seeking verified automation workflows or advanced simulation capabilities, since those areas are limited in the product's stated positioning. Buyers should also expect an education-oriented tool rather than a broad enterprise network-simulation platform. Choose Marionnet for accessible diagrams, emulation, VLAN practice, and host connectivity; consider an alternative when extensive automation or deeper simulation is central to the project.
Marionnet pros and cons
- Where it wins
- Free and open source for desktop-based network labs
- Graphical diagrams update dynamically during reconfiguration
- Emulates Linux machines, routers, switches, hubs, and cables
- Where it doesn't
- Advanced simulation and automation capabilities are limited
- Primarily focused on GNU/Linux emulation and network education
- Documentation and copyright materials are partly dated
Marionnet fact sheet, pricing and score →
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