- Pencil and paper: Extremely easy to use, but no templates, and not online
- GraphViz: Good for automatically generating a diagram from code, but you need to implement a script to do it. Bad (impossible) for free-form manual drawing.
- Asciiflow: Good for quickly knocking up a rough drawing of boxes and lines. Bad for editing that drawing.
- OpenOffice/LibreOffice Draw: Seems to be good for diagrams. Can export to PDF. How do you make the canvas bigger?
- LucidChart: Free. Online only, but can export to PDF.
- Dia: Free, but clunky. Dia by name, dire by nature. Exported images are messed up.
- Visio: Microsoft. You must pay.
- Omnigraffle: Mac only, but nice.
- www.draw.io: Free, but not as intuitive as others.
- Gliffy.com: Free trial. Online only. Quite good.
- moqups.com: Good. One project per free account.
- Creately
- Diagramly?
- Pencil project?
A piggy bank of commands, fixes, succinct reviews, some mini articles and technical opinions from a (mostly) Perl developer.
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Drawing software diagrams
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