
RegExr
rubular
Regex Crossword
Expresso
RegEx Generator
RegexOne
RegexPlanet Ruby
Extensive regex tester and debugger with highlighting for PHP, PCRE, Python and JavaScript.

Letter Generator
Paste a letter from any government body or authority and get a clear, plain-language translation within 10 seconds. €0.99 per letter or €4.99 per month.

Which is more popular?
Based on our record, regular expressions 101 seems to be more popular. It has been mentioned 891 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | regex101.com | decoder.discretemachine.com |
| Pricing | — | |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of BriefDecoder yet.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using regular expressions 101 and BriefDecoder. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Time to take care of that regular expression that acts as the word separator. With some experimentation (the regex101 web site is good for that), we arrived at this:. - Source: dev.to / 4 months ago
Regex101.com — full debugger with step-by-step matching. - Source: dev.to / 6 months ago
Regex101.com is objectively better than my regex explainer. - Source: dev.to / 8 months ago
Tracking BriefDecoder since Aug 2026.
When comparing regular expressions 101 and BriefDecoder, you can also consider the following products.

RegExr.com is an online tool to learn, build, and test Regular Expressions.
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Write an entire letter in less than a minute!
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A ruby based regular expression editor
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Welcome to the fantastic world of nerdy regex fun!
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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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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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