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I am looking for a free flow-charting web-app.

This is basically for creating flowcharts for a program's structure, and so, I would like (as many as possible):

  • font, block and line colour options
  • looping (ie. joining an arrow from one block back to another)
  • free positioning (doesn't have to be in one vertical line)
  • pictures (that I upload)

I need it to be free, online, exportable to any format (PDF is preferable), and cloud storage with the app is even better!

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I'm using Draw.IO for this kind of job:

drawio storage drawio templates drawio programming
DrawIO screenshots (source: Draw.IO; click images for larger variants)

  • font, block and line colour options: Yes.
  • joining an arrow from one block back to another: If I understand you (and DrawIO) correctly: yes (admitted, I've not explicitely tried).
  • free positioning: Definitely yes.
  • pictures (that I upload): Yes to the first, even includes an image search by license. And after a little check: Yes to the second, you can upload from an URL you specify (where you upload your image to first).
  • cloud storage: supports GoogleDrive and OneDrive – as well as your local harddrive and browser storage

It's pretty neat, you can export as...

  • XML (to load it again at a later time)
  • Graphics file (PNG, GIF, JPEG)
  • PDF, SVG, HTML

PS: There's even a drawio app to integrate with ownCloud:

drawio ownCloud app drawio ownCloud app
drawio ownCloud app (source: ownCloud apps; click images for larger variants)

See it in action in a Youtube video.

  • i.imgur.com/E1SFOxx.png works for me :) – ᔕᖺᘎᕊ Mar 27 '15 at 18:09
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    LOL I like the green box #D As for the red one: I don't count myself as an "experienced DrawIO user", but I use it every now and then – though mostly for "easy stuff" like this :) Oh, and BTW: You can even integrate DrawIO with your ownCloud installation. There's an app for that :) – Izzy Mar 27 '15 at 20:02
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    That's a lot of effort for a tag wiki that nobody's going to see ;p and that's a pretty pro flowchart according to me (at least by my standards ;). The ownCloud option's even better! Thanks :) – ᔕᖺᘎᕊ Mar 27 '15 at 20:16
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    I'm using that one in my (Android) books as well, so I don't feel the effort wasted :) And glad I could even give double-help (a pity you can't upvote twice now ;) Enjoy! – Izzy Mar 27 '15 at 20:22
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    Another great thing about Drawio is that you don't need an account or any sign up process! – KERR Oct 1 at 12:43

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