One of my favorite things about Rubular is the "Make Permalink" feature. Paste the link as a comment above your regex and you can easily get back to the same place later.

The permalink includes your test string(s) and makes it really easy to see what was going on when you wrote it.

I use Rubular all the time, and it inspired me to build http://strfti.me.

Adding this tool to my bookmarks

Thanks for the heads up

Looks good; great idea.

Oh wow I wish I knew about this sooner. More useful to me than rubular :)

Yeah this has been around for ages, not sure why this got reposted. Either way, this is still by far the best regexp site out on the net right now. There just isn't a better way to test your regexps.

ReWork is my go-to tool when I need to do anything with regexps. http://osteele.com/tools/rework/

Yes it's a great tool, but this isn't exactly "news". Just Google rubular site:news.ycombinator.com

It's certainly not new but worth sharing though.

I've been using it for a long time, yet I come across people that don't know about it in each consulting gig I do.

Hacker News should consider a "best of" list of some sort. Consider the sidebar feature on Metafilter.

I use this all the time even when I'm writing code in other languages. Love it.

I've been using rubular since it's inception. There are lots of sites/apps for building regex's, but rubular has always been my goto guy. To the developer, thanks for an awesome site!

http://www.gskinner.com/RegExr/ Anyone use this?

is it regular expression day on HN? Waiting for the inevitable Phplar (pheeplar) and Scalar :)

Regex syntax can get nasty at times but after all these years it's still the best tool we've got for what it does.

well.. any ideas on how to make it better? I think we all want better regex syntax.

Also, I don't necessarily think it's the syntax, but simply the power / complexity that regexes have.

You can mitigate the horribleness by using x to enable multiline regexes and then include inline comments.