Dia Diagram Editor is free Open Source drawing software for Windows, Mac OS X and Linux. Dia supports more than 30 different diagram types like flowcharts, network diagrams, database models. More than a thousand readymade objects help to draw professional diagrams. Dia can read and write a number of different raster and vector image formats. Software developers and database specialists can use Dia as a CASE tool to generate code skeletons from their drawings. Dia can be scripted and extended using Python.

Features

  • Draw structured diagrams (flowcharts, network layouts, etc)
  • Easy to use (Recommended in 89% of the user ratings)
  • More than 1000 predefined objects and symbols
  • Supports Windows, Mac OS X and Linux
  • Many im- and export formats
  • Scriptable via Python

Project Activity

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License

GNU General Public License version 2.0 (GPLv2)

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User Ratings

★★★★★
★★★★
★★★
★★
60
7
1
0
10
ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5

User Reviews

  • Love the Dia tool. Have been using it since 2002 for a variety of diagramming needs. Easy to use and very flexible. And today I learned something new. How to copy objects from one Dia diagram to another!! You guys rock!
  • Is not working with me, I have MacBook M1 Chip
  • I have used this free app to create many presentations. It is excellent. Best value for FREE. The only gripe I have is the level of difficulty in saving it in other formats, such as Power Point or PNG.
  • I would've given this software 5 stars if there was a "print review" function. Large flowchart plus inability to change display units to inches (so I didn't know the actual size to choose the appropriate paper) resulted in a few tries in paper sizes and scaling to get it right on the page - especially converting to pdf. Having said that, this little program was easy to use; had all of the functionality I needed to produce a flowchart and has a lot of different options for output formats. Just a little clunky in being able to size the output. I think this is pretty great software when your company doesn't want to pay for Visio. (There should be an "N/A" next to "Support" - it was so simple I didn't need Support so I gave it a "4").
  • Downloaded to my MAC (Monterey 12.0.1). It asked to load XQuartz - not sure why, but I did it anyway. I want ti run the DIA app, it start and closed without even opening any window .... What do I miss?
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Additional Project Details

Operating Systems

Linux, Mac, Windows

Languages

Arabic, Basque (Euskara), Belarusian, Bosnian, Brazilian Portuguese, Bulgarian, Catalan, Chinese (Simplified), Chinese (Traditional), Czech, Dutch, English, Esperanto, Finnish, French, Galician, German, Greek, Hungarian, Indonesian, Irish Gaelic, Italian, Korean, Latvian, Lithuanian, Macedonian, Malay, Marathi, Mongolian, Norwegian, Panjabi, Polish, Romanian, Serbian, Slovak, Slovene, Spanish, Thai, Turkish, Ukrainian, Vietnamese

Intended Audience

Developers, End Users/Desktop, Engineering, Non-Profit Organizations, Quality Engineers, System Administrators

User Interface

GTK+, Win32 (MS Windows), X Window System (X11)

Programming Language

C, Python

Related Categories

Python Vector Graphics Software, Python Drawing Software, C Vector Graphics Software, C Drawing Software

Registered

2000-12-18

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