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PseudoRun
Pseudocode
PSeInt
AlgoBox
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Thonny
Run Cambridge pseudocode as it is written: a free interpreter and IDE for learning to program

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.
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 | simpl-pseudocode.itch.io | flowgorithm.org |
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| Platforms | — | |
| Company | 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


SIMPL is a free interpreted language and IDE that runs pseudocode exactly as it is written. It follows the official Cambridge AS & A Level Computer Science (9618) pseudocode guide, so students can type an exam-style algorithm, press Run and see the result, or an error message in plain words...
No description of Flowgorithm yet.
What each product offers, as listed by its team.


Possible disadvantages
Walkthroughs and reviews on video.
SIMPL - Pseudocode that runs: from your first line to your first game
First Program in Flowgorithm
More videos
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing SIMPL Pseudocode and Flowgorithm.
SIMPL Pseudocode's answer
It runs the official Cambridge 9618 pseudocode exactly as students write it in the exam, and wraps it in an IDE built for learning: errors explained in plain words, a debugger, and a trace table filled in automatically.
SIMPL Pseudocode's answer
Most pseudocode tools accept their own dialect. SIMPL follows the Cambridge guide closely, and its strict mode tells you exactly what goes beyond it. It also works offline, needs no installation or account, and comes with a complete manual with exercises and solutions.
SIMPL Pseudocode's answer
Students preparing for Cambridge Computer Science exams and their teachers, and more generally anyone learning to program who wants a readable language without the noise of a professional one.
SIMPL Pseudocode's answer
Students often wrote algorithms on paper with no way to check them. I wanted a tool where pseudocode is simply typed and run, as in the home computers of the 80s, and grew it into a complete language and IDE.
Share your experience with using SIMPL Pseudocode and Flowgorithm. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking SIMPL Pseudocode since Oct 2026.
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
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An web platform for writing, testing & executing pseudocode. Features a user-friendly interface, compiler/interpreter & syntax highlighting.
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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.
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