GitHub City
GitHubTree
OpenSauced
GitHub Metrics
GitHub Visualizer
Swimm
Codemap
Turn any GitHub repository into an interactive diagram for visualization.

RegExr
Expresso
RegEx Generator
RegexPlanet Ruby
regular expressions 101
The Regex Coach
Reggy
A ruby based regular expression editor

Which is more popular?
Based on our record, rubular seems to be more popular. It has been mentioned 36 times since March 2021.
Website, pricing, platforms and company facts side by side.
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GitDiagram
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| Website | gitdiagram.com | rubular.com |
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What each product offers, as listed by its team.

No features have been listed yet.
Possible disadvantages
How often each product is chosen within a category, 0–100% relative to the other.

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

Tracking GitDiagram since Oct 2026.
I read a lot on https://www.regular-expressions.info and experimented on https://rubular.com since I was also learning Ruby at the time. https://regexr.com is another good tool that breaks down your regex and matches. One of the things I... - Source: Hacker News / about 2 years ago
As a ruby developer, I was happy to find that VS Code / TextMate grammar files use the same regular expression engine called Oniguruma as ruby itself. Thus, I could be sure that when trying my regular expressions in my favorite online... - Source: dev.to / almost 3 years ago
In my testing on a couple of regex testers (https://rubular.com/ & https://regex101.com/) this seems to select the postcode correctly each time. Source: over 3 years ago
When comparing GitDiagram and rubular, you can also consider the following products.

GitHub Ctiy uses ThreeJS to create a 3D city from your GitHub contributions.
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RegExr.com is an online tool to learn, build, and test Regular Expressions.
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The award-winning Expresso editor is equally suitable as a teaching tool for the beginning user of regular expressions or as a full-featured development environment for the experienced programmer with an extensive knowledge of regular expressions.
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Optimize Your Open Source Project with Deep Insights
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RegEx Generator is a simple-to-use application that comes with the brilliance of intuitive regex and is also helping you out to test the regex.
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