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RegExr

RegExr.com is an online tool to learn, build, and test Regular Expressions.

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  • RegExr Landing page
    Landing page //
    2023-07-28

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Social recommendations and mentions

We have tracked the following product recommendations or mentions on various public social media platforms and blogs. They can help you see what people think about RegExr and what they use it for.
  • Demystifying Regex in Go
    Online regex testers and debuggers: Tools like (https://regex101.com/) or (https://regexr.com/) can help you test and debug your regular expressions before integrating them into your Go code. - Source: dev.to / about 1 month ago
  • How to Validate Emails in PHP: regex, filter_var(), and API Explained
    Use online regex testers: Tools like Regex101 or RegExr can help visualize how your regex matches against test strings, providing explanations and highlighting potential issues. - Source: dev.to / about 1 month ago
  • Hot Springs
    When thinking about how I might compare an arrangement to the contiguous group of damaged springs, I used regexr.com to experiment with very specific regexs that used the numbers. - Source: dev.to / 6 months ago
  • Demystifying Regular Expressions (Regex): A Chat Sheet Guide
    There are plenty of online regex tools to test and experiment with regex patterns. Some popular ones include RegExr, RegEx101, and RegexPlanet. - Source: dev.to / 6 months ago
  • Camel Cards
    Using regexr.com it at least appears to work as expected. - Source: dev.to / 6 months ago
  • [2023 Day 2] [Python] Stuck on the first task
    If you are going to use RE's, use something like https://regexr.com/ to double check that they're doing what you want. I was suspicious of your 'cols = re.findall(r'\d+ .....', i)' line, and indeed it does miss some columns. You should rethink your column detection, and either not use REs or learn how to use capture groups and \w. There would then be no reason to use yet another RE in your column iterator to... Source: 7 months ago
  • 2023 Day 2 Part A [Java] regex pattern not matching
    First time posting here, let me know if I need to edit post to conform to any rules. My issue is that I'm trying to match regex pattern to separate out the number of cubes drawn and its color but my Matcher object seems to not be returning any matches so it's throwing a no match found exception when I try to call digitMatcher.group(). I have tested my regex pattern on sites like regexr and it seems to pass there... Source: 7 months ago
  • Trebuchet?!
    Regexr has been an invaluable tool as a beginner. - Source: dev.to / 7 months ago
  • Amazing tools that you must use to improve your work flow
    Regexr This site lets you build regex expressions while explaining how it will behave. Supports JavaScript & PHP/PCRE RegEx. Very useful if dealing with complex expressions. Regexr.com. - Source: dev.to / 8 months ago
  • 10 Lesser-Known Tools and Websites to Spice Up Your Developer Toolbox
    RegExr simplifies working with regular expressions. This online tool provides a visual interface for building and testing regex patterns in real-time, making regex less intimidating. - Source: dev.to / 9 months ago
  • Regex not working
    Ho did you arrive at the regex? I usually use a website to , such as https://regex101.com/, https://regexr.com/, https://regex-generator.olafneumann.org/ in combination of each other, as some explain better than the other. Source: 12 months ago
  • Capture the first instance, but don't stop?
    I pulled this into regexr.com and it yielded the same results except it removed :41:. Source: 12 months ago
  • Calibre Tag Association
    Okay. If you want to automate it you need to learn regular expressions (regex). You can test the code at (list non-exhaustive): https://regexr.com/ and https://regex101.com/. Source: 12 months ago
  • I'm having difficulty to fully understand this specific regular expression thing.
    Https://regexr.com/ is a valuable resource for learning regex, just put your regex in the box and it will tell you exactly what each part does. Source: 12 months ago
  • VBA code to extract text
    Before to start with vba try to use regex here. Source: 12 months ago
  • how to test variable if equals/matches 'a' or 'b' , '1' or '6' ??
    You can always get an explanation of any expression in regexr. Source: 12 months ago
  • What does .[] do?
    I just started learning Regex again (I did not know much before anyway), and I was playing around in regexr and I tried .[] and it does not match anything, no letter, no words, nothing even special characters. Source: about 1 year ago
  • What tool made the biggest impact on your efficiency?
    Specifically as far as regular expressions are concerned, I've gotten a lot of mileage out of regexr. Source: about 1 year ago
  • Regex did i really need it
    Yeah it is weird, that's why the online RegEx builder and debugger like the one already mentioned above or this one too https://regexr.com/ are here. Source: about 1 year ago
  • Match constant string, variable number, optional whitespace
    Also a tip: check out https://regexr.com/. You can try out your regex code, consult a cheatsheet and documentation and compile a test set to check what matches! Source: about 1 year ago
  • egg⌨️irl
    Oh thanks! I usually use regexr or regex101, the only reason I hate regex is, that I always forget everything and I have to relearn it every time I need it. Source: about 1 year ago

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