NwDiag Code to Diagram Viewer and Editor

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  • NwDiag Code to Diagram Viewer and Editor
Series: Block and Flow Diagrams
Episodes: (7/12)

Generate Network Diagrams with NwDiag on MassiveDiag Playground

Introduction

Network diagrams are essential for visualizing infrastructure, data flow, and system architecture. With MassiveDiag Playground, you can transform your NwDiag code into clear, professional network diagrams in seconds—perfect for IT professionals, system architects, and developers who need structured visual documentation.

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NwDiag Example

What is NwDiag?

NwDiag is a domain-specific diagramming language used to define network topologies using code. Designed for clarity and efficiency, NwDiag helps users represent servers, IP addresses, and network zones like DMZs and internal subnets—all in a simple text format that’s easy to maintain and share.

Supported NwDiag Features

MassiveDiag Playground fully supports core features of NwDiag, including:

  • Multiple networks (DMZ, internal, etc.)
  • IP address assignments
  • Node sharing across networks
  • Clear visualization of connectivity
  • Color-coded elements and clean layouts

Example of NwDiag Diagram

Here’s a sample code snippet that describes two networks: a DMZ and an internal network:

nwdiag {
  network dmz {
    address = "210.x.x.x/24"
    web01 [address = "210.x.x.1, 210.x.x.20"];
    web02 [address = "210.x.x.2"];
  }

  network internal {
    address = "172.x.x.x/24"
    web01 [address = "172.x.x.1"];
    web02 [address = "172.x.x.2"];
    db01;
    db02;
  }
}

This code produces the following diagram in MassiveDiag Playground:

NwDiag Example

Getting Started with NwDiag on MassiveDiag Playground

Follow these simple steps to visualize your NwDiag diagrams:

  1. Write or copy your NwDiag code
  2. Open MassiveDiag Playground
  3. Paste the code or upload it
  4. Ensure the correct diagram type is selected
  5. Click “Create Diagram”
  6. Preview, edit, and export your diagram

How to Use NwDiag in MassiveDiag

Here’s a visual guide to using NwDiag on MassiveDiag:

Step 1 – Get or Write Your Code

nwdiag {
  network dmz {
    address = "210.x.x.x/24"
    web01 [address = "210.x.x.1, 210.x.x.20"];
    web02 [address = "210.x.x.2"];
  }

  network internal {
    address = "172.x.x.x/24"
    web01 [address = "172.x.x.1"];
    web02 [address = "172.x.x.2"];
    db01;
    db02;
  }
}

Step 2 – Paste Code into Playground

Step 2

Step 3 – Select Diagram Type if Needed

Step 3

Step 4 – Click “Create Diagram”

Step 4

Step 5 – Preview & Download (SVG, PNG, Word, PDF)

Step 5

Practical Use Cases

  • IT Infrastructure Planning
  • System Architecture Design
  • DevOps Network Mapping
  • Educational Diagrams for Training
  • Documentation for Compliance or Audits
  • Collaboration with Non-Technical Stakeholders

Multilanguage Support

MassiveDiag Playground supports a global user base with full interface translation in:

  • Spanish
  • French
  • German
  • Italian
  • Chinese
  • Japanese
  • Russian
  • Arabic
  • Portuguese
  • Hindi
  • Korean
    ...and more!

Tips for Effective NwDiag Diagrams

  • Use meaningful node names to clarify server roles
  • Group related servers in the same network block
  • Leverage IP assignments to reflect real-world configurations
  • Break down large diagrams into smaller modules
  • Use comments (//) to keep your code understandable

FAQ About NwDiag and MassiveDiag

Do I need to install anything to use NwDiag in MassiveDiag?
No installation needed. It runs entirely in the browser.

Can I edit the diagram after it’s generated?
Yes, MassiveDiag supports live editing and real-time preview.

Can I export diagrams in high quality?
Yes, exports are available in SVG, PNG, Word, and PDF formats.

Does MassiveDiag auto-detect NwDiag syntax?
Yes. If not, you can manually select NwDiag from the dropdown.

Is MassiveDiag free to use?
Yes! You can try all features for free—no account required.

Conclusion

Whether you're building complex network infrastructures or creating documentation for team collaboration, NwDiag + MassiveDiag Playground offers the fastest way to turn text-based definitions into clear, shareable network diagrams.

🚀 Start diagramming now – it’s free, fast, and powerful!
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