Network design is a critical part of IT infrastructure, AV systems, and enterprise planning. Microsoft Visio has traditionally been used to create network diagrams, server layouts, and data flow charts. However, Visio’s cost and limited cross platform support make open source alternatives an appealing option. In 2025, open source diagramming tools provide robust features for network design, real time collaboration, and professional quality diagrams without the need for expensive licenses. This blog explores the top open source tools for network design, with XTEN AV highlighted as a professional choice.

XTEN AV The Professional Solution for Network Design
XTEN AV is a cloud based diagramming platform that supports detailed network diagrams, server rack layouts, AV systems, and IT infrastructure planning. Its AI powered automation ensures connectors and components are aligned accurately. Real time collaboration and cloud storage allow multiple team members to contribute simultaneously, making it ideal for IT teams, network engineers, and AV integrators. Templates for switches, routers, servers, and AV equipment streamline network design and reduce errors.

Why Open Source Tools Are Ideal for Network Design
Open source tools offer:
Cost efficiency for startups and IT teams
Flexibility to customize diagrams
Cross platform access including Windows, Mac, Linux, and mobile devices
Integration with cloud storage and collaboration tools
Community support for updates, plugins, and templates
Ability to handle complex network layouts and technical schematics

Key Features to Look For in Network Design Tools
Prebuilt network components such as routers, switches, servers, and AV equipment
Drag and drop interface for easy diagram creation
AI or automatic layout features to optimize spacing and connections
Support for multiple file formats including Visio compatible formats
Real time collaboration and commenting
Export options in PDF, PNG, SVG, or image formats for documentation
Cross platform accessibility and mobile support

Top Open Source Tools for Network Design

XTEN AV
Supports advanced network diagramming, AV layouts, and server rack designs. AI powered automation and template libraries enhance accuracy and reduce manual work. Real time collaboration allows IT teams to work together efficiently.

Draw io / Diagrams net
A free and open source browser based tool ideal for network diagrams. Offers components for network devices, drag and drop editing, and integration with cloud storage. Supports offline desktop versions.

yEd Graph Editor
Professional open source tool for network diagrams, UML, ERD, and BPMN. Automatic layout algorithms simplify complex network structures and improve readability.

Dia
Open source solution for network diagrams, simple flowcharts, and technical illustrations. Supports custom components and plugins.

LibreOffice Draw
Part of the LibreOffice suite, it allows network diagramming with basic shapes and connectors. Useful for smaller IT projects or simple network layouts.

GNS3 and Netdisco
Though primarily network simulation tools, they can be used to generate network diagrams based on live configurations, providing open source solutions for IT teams managing complex networks.

Advantages of Open Source Network Design Tools
Free with no licensing fees
Customizable components for specific network environments
Cloud based or offline use depending on team needs
Cross platform support for distributed teams
Community support for templates, plugins, and troubleshooting
Lightweight and efficient for low end systems
Supports real time collaboration and feedback

Use Cases for Network Design Tools
Enterprise Network Layouts
Create detailed maps of switches, routers, firewalls, and servers.

AV System Networks
Design audio visual networks for conference rooms, auditoriums, and studios.

Data Centers
Visualize server racks, network cabling, and equipment layouts efficiently.

Educational Purposes
Students and trainers can design network labs and practice diagrams.

IT Documentation
Document existing networks for audits, troubleshooting, and compliance.

Tips for Effective Network Diagramming
Use prebuilt templates to reduce setup time
Keep diagrams organized for clarity and readability
Collaborate using cloud based tools for remote teams
Use AI or automatic layout features for complex networks
Regularly save diagrams in multiple formats for reporting
Leverage community plugins for additional network components

Conclusion
Open source diagramming tools have become a viable alternative to Microsoft Visio for network design. They provide cost efficiency, flexibility, and professional grade features suitable for IT teams, AV designers, and enterprise planning. XTEN AV stands out as a top professional solution with AI powered automation, real time collaboration, cloud based access, and extensive network design templates. Other tools like Draw io, yEd, Dia, LibreOffice Draw, GNS3, and Netdisco also provide powerful options for network diagramming. By adopting open source tools, teams can efficiently design, document, and collaborate on complex networks without the limitations or cost of traditional Visio software.

Read more: https://gwendpots.substack.com/p/top-5-open-source-alternatives-to