Dia icon
Dia icon

Dia

 451 likes

Open-source diagram editor supporting Linux, Windows, Unix, and Mac OS X, with features for constructing entity relationship, UML, flowchart, and network diagrams, customizable with XML-defined shapes, extensibility, and a GTK+-based graphical user interface.

Dia screenshot 1

License model

  • FreeOpen Source

Country of Origin

  • US flagUnited States

Platforms

  • Mac  Requires XQuartz to run
  • Windows  Dia 0.97 runs on Windows 2000. Dia 0.94 runs on Windows NT, Windows 98 and Windows ME (requires GTK+ runtime environment 2.6)
  • Linux
  • PortableApps.com
  • FreeBSD
  • Xfce
  • DragonFly BSD
  • NetBSD
  • OpenBSD
3.5 / 5 Avg rating (10)
451likes
14comments
0news articles

Features

Suggest and vote on features

Properties

  1.  Lightweight

Features

  1.  Flow Chart
  2.  Works Offline
  3.  Workflow
  4.  WYSIWYG Support
  5.  Extensible by Plugins/Extensions

 Tags

Dia News & Activities

Highlights All activities

Recent News

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Recent activities

  • Danilo_Venom updated Dia
    4 days ago
  • sweetemberxv, evanbindz and PredatorQ liked Dia
    about 1 month ago
  • App icon
    gamefiend added Dia as alternative to Excalidraw
    3 months ago
  • thejfex liked Dia
    5 months ago
  • App icon
    POX added Dia as alternative to quiver diagram editor
    5 months ago
  • App icon
    AhuracMusic added Dia as alternative to D2
    6 months ago
  • App icon
    draft1ai0 added Dia as alternative to draft1.ai
    6 months ago
  • shazmataz reviewed Dia  
    7 months ago

    Okay. It's nowhere near being an alternative to Microsoft Visio, but it was my initial go to when I started off consulting and wanted to quickly produce flowcharts and mock ups.

    The interface was not that enticing but it's served it's purpose as a stepping stone.

    Unfortunately, the Windows side has suffered for a long time. So, I have been happily using draw.io/diagramming.net. But, if you want open source then look at LibreOffice - Draw.

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Dia information

  • Developed by

    US flagThe GNOME Project
  • Licensing

    Open Source and Free product.
  • Rating

    Average rating of 3.5
  • Alternatives

    91 alternatives listed
  • Supported Languages

    • English

Our users have written 14 comments and reviews about Dia, and it has gotten 451 likes

Dia was added to AlternativeTo by melbicimni on Apr 16, 2009 and this page was last updated May 16, 2025.

Comments and Reviews

   
 Post comment/review
Comment summary: Dia is praised for being a free and easy-to-use flowchart tool similar to Visio, featuring many capabilities and being effective on Linux. However, it faces criticism for its clunky interface, lack of updates, and difficulties on macOS and Windows. Some users find it lacking in importing Visio files and bulk file exporting. Alternatives like Pencil and LibreOffice Draw are recommended for better user experience and features.
Top Positive Comment
Guest
Sep 1, 2021
0

Light, free, simple and many features. Grid snapping can be upgraded thought.

Top Negative Comment
Eliaszica
Feb 13, 2016
2

I successfully made some diagrams with Dia but, as another user said, its interface is really clunky. Now I'm trying yED.

Shaz Shah
Oct 22, 2024
0

Okay. It's nowhere near being an alternative to Microsoft Visio, but it was my initial go to when I started off consulting and wanted to quickly produce flowcharts and mock ups.

The interface was not that enticing but it's served it's purpose as a stepping stone.

Unfortunately, the Windows side has suffered for a long time. So, I have been happily using draw.io/diagramming.net. But, if you want open source then look at LibreOffice - Draw.

dimlakgorkehgz
Mar 27, 2019
-5

Can not dl because source forge certificate is out of date.

[Edited by dimlakgorkehgz, March 28]

OOps that is just because I was downloading it from KFC.

karlblass
Mar 7, 2017
1

Like that software. It's a bit unhandy sometimes but in the end maybe the best libre software there is for that purpose.

Shoji
Feb 20, 2017
0

• Complete Component but hard to use - file export are 1 by 1 (cant bulk)

charlesgoodwin
May 18, 2016
2

Dia has somewhat stagnated in recent years. For a long time it was the only real open source option other than turning to Inkscape and doing everything from scratch. These days I'd recommend you try Pencil instead because it has a much nicer UI and arguably better features.

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7 of 14 comments

What is Dia?

Dia is a GTK+ based diagram creation program for Linux, Unix, Mac OS X and Windows released under the GPL license.

Dia is roughly inspired by the commercial Windows program Microsoft Visio icon Microsoft Visio, though more geared towards informal diagrams for casual use. It can be used to draw many different kinds of diagrams. It currently has special objects to help draw entity relationship diagrams, UML diagrams, flowcharts, network diagrams, and many other diagrams. It is also possible to add support for new shapes by writing simple XML files, using a subset of SVG to draw the shape.

Official Links