
draw.io
Dia
yEd
UMLGraph
OmniGraffle
CollabNet
UMLet
Flowgorithm is one of the alluring flowchart programming languages that come with the capability of simple graphical flowcharting.

StackMail
A self-hosted, unified webmail client. Connect multiple IMAP/SMTP accounts and manage them all in one clean interface.

Which is more popular?
Based on our record, Flowgorithm seems to be more popular. It has been mentioned 3 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | flowgorithm.org | mailflow.sh |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
Walkthroughs and reviews on video.
First Program in Flowgorithm
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Flowgorithm and Mailflow.sh. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


If you want to check out the motherlode of other visual programming languages, platforms, etc check out Ivan Reese's Visual Programming Codex. https://github.com/ivanreese/visual-programming-codex Although I'm going to have to create a... - Source: Hacker News / over 1 year ago
The Whole Code Catalog [1] and Ivan Reese's Visual Programming Codex [2] are great resources in the area. I also have to mention, despite the awful name, Flowgorithm is an EXCELLENT tool for teaching the fundamentals of procedural... - Source: Hacker News / over 2 years ago
> I'm passionate about teaching programming to 17-19 year olds. I've been teaching for some time an introductory programming class to kids with those ages (1st year university students). I think the best approach to teach programming is... - Source: Hacker News / almost 4 years ago
Tracking Mailflow.sh since Aug 2026.
When comparing Flowgorithm and Mailflow.sh, you can also consider the following products.


Stackmail is a webmail service whereby you can log in to your emails from any browser at any time!
Compare StackMail to Flowgorithm or Mailflow.sh:

Dia is a GTK+ based diagram creation program for GNU/Linux, MacOS X, Unix, and Windows, and is released under the GPL license.
Compare Dia to Flowgorithm or Mailflow.sh:

yEd is a free desktop application to quickly create, import, edit, and automatically arrange diagrams. It runs on Windows, Mac OS X, and Unix/Linux.
Compare yEd to Flowgorithm or Mailflow.sh:

UMLGraph is a professional automated drawing tool that allows the designers the declarative specification and drawing of UML class and sequence diagram.
Compare UMLGraph to Flowgorithm or Mailflow.sh:

OmniGraffle is for creating precise graphics like website wireframes, an electrical system designs, or mapping out software class.
Compare OmniGraffle to Flowgorithm or Mailflow.sh: