Is there an online RegexBuddy-like regular expression analyzer? [closed]

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I'm looking for an online utility that will prettify and add explanatory comments to a regular expression. Does one exist?

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I like the online tool: http://regexr.com

When you hover over the regular expression you will get an explanation of that part.

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For what it's worth, I also like:

• regex101.com, which is quite powerful, but technical. It features timing and steps taken results as well as permalinks for sharing a regex with explanation and test data.
• regexper.com, which draws railroad diagrams of regexes. The results are very nice to look at and easy to understand, but there are no textual explanations.

Both are free to use.

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There's a bunch of them listed in Steven Levithan's blog.

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regexpal is the one I always use. I prefer it to the Flash-based RegExr.

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I currently use http://rick.measham.id.au/paste/explain.pl from Rick Measham. It is a regex explanation tool that simply works.