Dia

Dia

The Dia Developers
+
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About

Dia is an open-source diagramming application that allows users to create a wide range of structured diagrams such as flowcharts, network layouts, and UML designs. Compatible with Windows, Linux, and Mac OS X, Dia offers downloadable shape libraries and scripting options. It is licensed under GPLv2 and includes resources like documentation, bug trackers, and community support.

About

TopoAI is web-based diagram software for creating and refining structured, editable network, cloud, security, and IT infrastructure topology diagrams. Users can start from written technical requirements, professional templates, sketches, reference images, icon libraries, or a blank canvas. Natural-language instructions and direct canvas tools make it easy to add or remove devices, reconnect paths, update labels, organize zones, and adjust layouts. Built-in and private icon libraries support consistent visual standards, while save, export, share, revisit, and reuse workflows help teams produce proposals, architecture reviews, documentation, implementation plans, and handoff materials.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Dia is ideal for developers, engineers, and students who need a free, cross-platform solution for creating structured technical diagrams

Audience

Network engineers, network administrators, solutions architects, cloud and security architects, presales engineers, systems administrators, DevOps and SRE teams, MSPs, and system integrators that create or maintain professional infrastructure topology diagrams.

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Pricing

$5 per month
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 4.0 / 5
ease 5.0 / 5
features 4.0 / 5
design 4.0 / 5
support 5.0 / 5

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Pros & Cons from Real Users

Pros

  • Great for making simple diagrams quickly. Free & open-source. Simple layout & easy to use. Multi-platform availability.

Cons

  • Outdated interface. Lacks features to build complex designs.

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

The Dia Developers
Germany
dia-installer.de

Company Information

TopoAI
Founded: 2025
China
www.topoai.cc/

Alternatives

Microsoft Visio

Microsoft Visio

Microsoft

Alternatives

Astah Professional

Astah Professional

Change Vision, Inc.
Flowdia

Flowdia

BEZAPPS
ClickCharts

ClickCharts

NCH Software
DrakonHub

DrakonHub

DRAKON Labs
EdrawMax

EdrawMax

Wondershare

Categories

Diagram Supported
Process Mapping Supported

Categories

Diagram Supported

Diagram Features

Data Import / Export Not Supported
Drag & Drop Not Supported
Flowchart Supported
For Developers Not Supported
Mind Map Not Supported
Multi-User Collaboration Not Supported
Organizational Charting Supported
Templates Not Supported

Integrations

No info available.

Integrations

No info available.
Claim Dia and update features and information
Claim Dia and update features and information
Claim TopoAI and update features and information
Claim TopoAI and update features and information